| Patents for B31B 41 - Machinery characterised by making envelopes or bags of other specific form or construction (686) |
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| 11/01/1994 | CA1332822C Mailer with oversized insert and method of making |
| 10/11/1994 | CA1332382C Film processing envelope with removable negative pouch |
| 06/15/1994 | EP0601103A1 Packaging bag, preferably for perilous samples, and method for producing the packaging bag. |
| 02/22/1994 | US5288014 Two-way mailer |
| 02/08/1994 | CA1326843C Reclosable bag |
| 12/23/1993 | WO1993025395A1 Manufacturing of a bulk mail letter |
| 12/09/1993 | DE4218280A1 Continuous sales letter prodn. - involves punching holes in opaque film, covering holes in transparent film locating letter, folding over film and sealing edges before cutting individual envelopes |
| 11/03/1993 | EP0452355B1 Manufacturing method for a flexible container |
| 10/27/1993 | EP0566563A1 A printed and encoded mass distributable response piece and method of making the same. |
| 09/29/1993 | EP0562416A1 Method for automatically forming pockets for wallets, cheque holders, credit card holders and similar articles, a device for implementing the method, and the pockets obtained |
| 06/24/1993 | WO1993011948A1 Apparatus and method for maintaining the confidentiality of printed information |
| 06/24/1993 | CA2126075A1 Apparatus and method for maintaining the confidentiality of printed information |
| 05/19/1993 | EP0541836A1 Method for mailing production |
| 04/21/1993 | EP0537145A1 A method for producing a mass distributable printed packet. |
| 03/30/1993 | US5197262 Assembly for producing a mass distributable printed packet |
| 03/18/1993 | WO1993004946A1 Packaging bag, preferably for perilous samples, and method for producing the packaging bag |
| 03/17/1993 | EP0531429A1 Single use dispensing sachets and method of and means for manufacture of same. |
| 03/09/1993 | US5192133 Flexible container with improved bottom and top |
| 12/22/1992 | CA1311641C Apparatus for manufacturing sealed posted mails or the like envelope assemblies |
| 09/29/1992 | US5151076 Manufacturing method for a flexible container |
| 08/11/1992 | US5137304 End and encoded mass distributable response piece and method of making the same |
| 06/25/1992 | WO1992010371A1 A printed and encoded mass distributable response piece and method of making the same |
| 06/02/1992 | US5118375 Method and apparatus for making envelopes on-line for direct mail application |
| 06/02/1992 | US5117610 Methods and apparatus for printing and collating materials from multiple webs |
| 05/05/1992 | CA1300102C Document moistening device |
| 04/28/1992 | US5107656 Assembly for producing a mass distributable printed packet |
| 03/17/1992 | US5095682 Mailer and method and apparatus for making |
| 02/11/1992 | US5087805 Printed and encoded mass distributable response piece and method of making the same |
| 01/07/1992 | WO1992000878A1 A method for producing a mass distributable printed packet |
| 12/12/1991 | WO1991018804A1 Single use dispensing sachets and method of and means for manufacture of same |
| 11/12/1991 | US5064115 Mailer and method and apparatus for making |
| 10/29/1991 | US5060847 Film processing envelope with optional removable negative pouch |
| 10/23/1991 | EP0452355A1 Manufacturing method for a flexible container. |
| 09/25/1991 | EP0448271A1 Mechanism and method for folding and sealing the upper and side flaps of an envelope form |
| 09/13/1991 | CA2037616A1 Mechanism and method for folding and sealing the upper and side flaps of an envelope form |
| 09/11/1991 | CN1054397A 柔性容器 Flexible container |
| 05/16/1991 | DE3937858A1 Method of making packaging bags with pockets - has pockets formed from panels bonded to main strip of bag material |
| 03/19/1991 | US5000373 Mailer with oversized insert and method of making |
| 02/05/1991 | CA1279785C Process for making t-shirt bags |
| 01/02/1991 | EP0405595A1 A machine for continuous manufacturing of netting bags |
| 11/27/1990 | US4972655 Apparatus for manufacturing sealed postal mails or the like envelope assemblies |
| 09/07/1990 | WO1990009929A1 A flexible container with improved bottom and top |
| 09/05/1990 | EP0384941A2 A flexible container with improved bottom and top |
| 07/10/1990 | US4939888 Method for producing a mass distributable printed packet |
| 07/04/1990 | EP0375813A1 An apparatus for manufacturing sealed postal mails or the like envelope assemblies |
| 06/28/1990 | WO1990006844A1 Manufacturing method for a flexible container |
| 06/26/1990 | US4936817 Reclosable bag |
| 06/13/1990 | EP0372140A1 An apparatus for manufacturing sealed postal mails or the like envelope assemblies |
| 06/05/1990 | US4931035 Mailer with oversized insert and method of making |
| 05/22/1990 | US4927405 Protective laboratory specimen bag |
| 03/27/1990 | US4911777 Method for manufacturing photograph slide sleeving material |
| 02/13/1990 | US4900391 Recirculating folder for direct mail application |
| 11/02/1989 | EP0339817A2 Reclosable bag |
| 08/23/1989 | EP0329316A2 Method for manufacturing photograph slide sleeving material and slide storage files therefrom |
| 07/12/1989 | EP0323808A1 A method and equipment for the production and packaging operation of a continuous manufacture of small bags with longitudinal folds and transversal pre-incisions and manufacture thus packaged |
| 07/11/1989 | US4846349 Method and equipment for the production and packaging operation of a continuous manufacture of small bags with longitudinal folds and transversal pre-incisions and manufacture thus packaged |
| 06/13/1989 | CA1255641A1 Personalised multi-sheet data carrying assembly and method of forming same |
| 01/25/1989 | CN2031341U Automatic continuous cutter for bag-material |
| 01/24/1989 | US4799989 Document moistening device |
| 01/04/1989 | EP0297843A1 An apparatus for manufacturing sealed postal mails or the like envelope assemblies |
| 11/29/1988 | US4787511 Mixing bag with plural compartments |
| 10/11/1988 | CA1243002A1 Mailer construction for optical postal sorting machine |
| 09/13/1988 | US4769969 Apparatus for producing shipping forms |
| 08/16/1988 | US4764159 Document file |
| 07/26/1988 | US4759742 Process of making T-shirt bags |
| 06/22/1988 | EP0272160A1 Pack |
| 05/17/1988 | US4744673 Packaging bag |
| 03/29/1988 | US4733856 Mechanism for forming personalized envelopes and inserts |
| 02/16/1988 | US4724996 Data carrying assembly and method and apparatus for forming same |
| 02/04/1988 | DE3721535A1 Method and device for the production of protective sleeves for flexible magnetic storage disks |
| 01/19/1988 | CA1231508A1 Process and apparatus for forming integral interlocking closure film stock |
| 11/19/1987 | EP0245654A2 Method for making so-called shirt bags |
| 10/06/1987 | US4698112 Heating mold, cutting mold and collecting means |
| 05/26/1987 | US4668212 Process for manufacturing sealed postal envelope assemblies |
| 04/14/1987 | US4657792 Reclosable; zig-zag line |
| 04/07/1987 | CA1220174A1 Direct mail article with reply envelope and detachable reply devices visible within reply envelope |
| 03/25/1987 | EP0140931B1 A package and method for fabrication thereof |
| 03/24/1987 | US4651920 Direct mail article with reply envelope and detachable reply devices visible within reply envelope |
| 03/24/1987 | US4651504 Double funnel bag material and method |
| 12/23/1986 | US4630768 Envelope and enclosure sheet |
| 12/09/1986 | US4627829 Centerfold forming apparatus for a disk envelope |
| 11/25/1986 | US4624407 Package and method for fabrication thereof |
| 10/14/1986 | US4617081 Side flap fold apparatus for a disk envelope |
| 09/12/1986 | WO1986005162A1 Packaging bag |
| 08/26/1986 | US4608039 Envelope folding system |
| 08/13/1986 | EP0190580A2 Flap folding apparatus for a disk envelope |
| 08/13/1986 | EP0190579A2 Centerfold forming apparatus for a disk envelope |
| 07/15/1986 | US4600141 Mailing envelope and insert subassembly |
| 07/09/1986 | EP0187083A1 Continuous assembly of postal letters or the like |
| 07/08/1986 | US4599080 Method for folding jacket material for disk or the like |
| 07/02/1986 | EP0185811A2 Apparatus for manufacturing sealed envelope assemblies |
| 06/03/1986 | CA1205312A1 Apparatus and method for forming and stacking plastic bags |
| 05/06/1986 | US4586651 Mailing sub-assembly with envelope sheet and enclosure sheet |
| 04/29/1986 | CA1203714A1 Bag for use in the shaping of liquid food products or stimulants, and a method and an apparatus for use in the production of the bag |
| 01/14/1986 | CA1199210A1 Method of producing mailer with self-contained reply envelope |
| 12/17/1985 | US4559030 Apparatus for folding jacket material |
| 11/19/1985 | US4553887 Dunnage bag |
| 10/22/1985 | US4548321 Foil bag |
| 10/22/1985 | US4548023 Method and apparatus for forming a plastic enclosure for fluids with selectively interconnectable internal compartments |
| 09/24/1985 | US4543279 Plastic film product |