| Patents for B25D 13 - Portable percussive tools with electromagnetic drive (242) |
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| 09/17/2002 | CA2295873C Electromagnetic hammer with mobile ferromagnetic weight |
| 08/21/2002 | EP0994986B1 Electromagnetic hammer with mobile ferromagnetic weight |
| 05/10/2002 | WO2002036310A1 Electric tool with linear motor |
| 05/09/2002 | US20020053445 Power tool with a linear motor |
| 02/07/2002 | US20020014344 Hand-held tool with electromagnetic hammer mechanism |
| 02/06/2002 | CN2475517Y Electric hammer and electric pick hammering component |
| 01/23/2002 | CN2472884Y Portable multifunction electric hammer |
| 12/05/2001 | CN1324712A Hand-operation tool with electro magnetic impact machine |
| 11/29/2001 | DE10025371A1 Handwerkzeuggerät mit elektromagnetischem Schlagwerk Hand tool with electromagnetic percussion |
| 11/28/2001 | EP1157789A1 Percussive tool with electromagnetic percussion system |
| 08/29/2001 | CN2444723Y Electric pick |
| 06/28/2001 | US20010004939 Electromagnetic hammer having a moving ferromagnetic mass |
| 06/27/2001 | EP1111137A1 Electromagnetic hammer with a mobile ferromagnetic mass |
| 03/13/2001 | US6201362 Electromagnetic hammer with mobile ferromagnetic weight |
| 01/24/2001 | EP1070569A1 Impact machine |
| 01/10/2001 | CN2413868Y Inner beveling machine for working small horizontal hole of braking pump |
| 07/05/2000 | EP1016503A2 Handheld drill and/or chisel apparatus |
| 06/08/2000 | DE19855750A1 Hand-guided drill and/or chisel has percussion body that can be periodically axially displaced using controlled magnetic field from coils and at least one high power permanent magnet |
| 06/07/2000 | CN1255416A Manually-operated drill and/or chiselling machine |
| 04/26/2000 | EP0994986A1 Electromagnetic hammer with mobile ferromagnetic weight |
| 12/02/1999 | DE19824174A1 Drive power control method for double-solenoid impact tool e.g. hammer tool |
| 07/01/1999 | WO1999032266A1 Impact machine |
| 05/12/1999 | CN2318005Y Hand held electric shock device |
| 01/21/1999 | WO1999002787A1 Electromagnetic hammer with mobile ferromagnetic weight |
| 06/26/1996 | EP0718075A1 Electromagnetic percussion device |
| 03/12/1996 | US5497555 Electromagnetic percussion device |
| 04/10/1991 | CN2074701U Rotary fastening complex planer tool |
| 07/18/1990 | EP0377754A1 Stroke-action device |
| 12/14/1989 | WO1989011954A1 Stroke-action device |
| 11/01/1989 | CN2046792U High-frequency vibration metater's hammer |
| 01/24/1989 | US4799557 Electromagnetic pile driver |
| 07/22/1986 | US4601351 Electrically driven hammer machine |
| 05/27/1986 | CA1205165A1 Electrically driven hammer machine |
| 05/20/1986 | CA1204729A1 Device for driving and extracting piles, tubes, rods etc. |
| 11/12/1985 | US4553074 Method of and apparatus for the autosynchronization of an electromagnetic hammer |
| 08/28/1984 | US4468594 Electromagnetic percussion implement |
| 05/02/1984 | EP0107629A1 An electrically driven hammer machine |
| 02/22/1984 | EP0101389A1 Process and device for the self-synchronised control of an electromagnetic hammer |
| 04/13/1983 | EP0076768A1 Apparatus for driving and drawing piles, tubes, sheet pilings, stakes, etc. |
| 10/12/1982 | US4353426 Percussive tools |
| 12/09/1980 | US4237987 Percussive tool |
| 07/29/1980 | US4215297 Electromagnetic percussion appliance |