| Patents for G04C 23 - Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (976) |
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| 07/22/1980 | US4214134 Time detecting switch for alarm clock |
| 07/15/1980 | US4212155 Time detecting switch for clock |
| 07/15/1980 | US4212154 Time striking device for electronic timepiece |
| 06/24/1980 | US4208866 Electronic timepiece equipped with alarm |
| 06/17/1980 | CA1079532A1 Alarm switch and alarm set device |
| 06/03/1980 | US4205519 Electronic time-piece with acoustic signal, for signalling a particular working mode |
| 04/08/1980 | US4197436 Timer mechanism |
| 02/05/1980 | US4187468 Electronic clock radio having nap/sleep feature |
| 01/15/1980 | US4183251 Timer mechanism |
| 01/08/1980 | US4182112 Control panel unit and timer unit and method therefor |
| 10/30/1979 | US4172358 High accuracy timer actuating mechanism in a leaf type digital clock |
| 10/09/1979 | US4170782 Programming and selection monitoring system for television receivers |
| 07/10/1979 | CA1057963A1 Programmable signal clock with electronic appointments marking calendar |
| 06/26/1979 | US4159491 Quadrabell carillon instrument |
| 06/12/1979 | US4157646 Alarm switch and alarm set device |
| 05/15/1979 | US4155003 Adjustable electronic time switch |
| 05/08/1979 | CA1054196A1 Removable combination cams |
| 04/24/1979 | US4150718 Replacement thermostat adapter wall plate |
| 03/27/1979 | US4146054 Means for positioning a valving device with a timing device |
| 01/16/1979 | CA1046565A1 Automatic timer |
| 12/19/1978 | US4130748 Plug-type switch |
| 10/31/1978 | US4122660 Snow alarm |
| 10/31/1978 | CA1041635A1 Device for presetting a television program and the like |
| 08/22/1978 | US4109119 Program control device |
| 07/04/1978 | US4098069 Digital clock with timer |
| 06/06/1978 | US4093944 Silent awakening system with means adapted to induce sleep |
| 05/30/1978 | US4092533 Timing signal generating device |
| 05/30/1978 | US4091608 Timer clock |
| 05/02/1978 | US4087679 Programmable timing device for indicating appointments |
| 03/28/1978 | US4081753 Automatic programming system for television receivers |
| 03/14/1978 | US4079366 Electronic timer and thermoswitch device |
| 02/14/1978 | US4074117 Timing system |
| 01/24/1978 | US4069658 Alarm setting device for timepieces |
| 09/20/1977 | US4049973 Timer controlled space thermostat with battery operated timer |
| 08/30/1977 | US4045760 Cut-back thermostat construction |
| 08/30/1977 | US4045759 Cut-back thermostat construction |
| 08/30/1977 | US4045627 Switching mechanism for alarming time detection in an alarming device |
| 08/23/1977 | US4044229 Device for electroconductive connection and reading |
| 07/26/1977 | US4037398 Digital timer and time indicator drums therefor |
| 06/14/1977 | US4029918 Continuous cycle timer having adjustable day and time periods of operation |
| 05/31/1977 | US4026102 Electronic clock |
| 04/05/1977 | US4015417 Alarm time setting notifying mechanism for a clock or the like |
| 03/15/1977 | US4012607 Miniature timer |
| 02/01/1977 | US4005570 Leaf-type digital clock |
| 01/11/1977 | US4002925 Wall-mounted automatic timer and manual on-off light switch |
| 01/11/1977 | US4002292 Timing device for thermostatic-control units |
| 12/28/1976 | US4000384 Unlocking mechanism |
| 12/14/1976 | US3996734 Minute-interval alarming device for a clock or the like |
| 11/09/1976 | US3991289 Automatic timer |
| 11/02/1976 | US3989928 Method and apparatus for cyclically controlling the energization of home water heaters |
| 10/19/1976 | US3987430 Programmed control unit |
| 09/07/1976 | US3979601 Combination dimmer and timer switch mechanism |
| 08/31/1976 | US3978306 Cooking time adjusting arrangement for use in electronic oven |
| 08/24/1976 | US3976101 Automatic timer device for water softeners or the like |
| 06/29/1976 | USRE28888 Cooking time adjusting arrangement for use in electronic oven |
| 06/29/1976 | US3967078 Time switch mechanism |
| 06/29/1976 | US3967077 Appliance timer switch assembly |
| 06/29/1976 | US3965668 Shutter type digital clock |
| 06/22/1976 | US3965349 Time switch with adjustable program |
| 06/22/1976 | US3965324 Cooking time adjusting arrangement for use in electronic oven |
| 06/22/1976 | US3965322 Cooking time adjusting arrangement for use in electronic oven |
| 06/22/1976 | US3965312 Percentage timer |
| 06/15/1976 | US3963968 Intervalometer apparatus |
| 06/01/1976 | US3961180 Luminaire duration control |
| 04/20/1976 | US3952177 Timer for multi-purpose use |
| 04/20/1976 | US3951007 Cams |
| 04/06/1976 | US3949303 Time controlled switching arrangement for two timer radio receiver |
| 04/06/1976 | US3949241 Control apparatus for electrical devices |
| 04/06/1976 | US3949240 Switching circuit for power supply to electronic apparatus |
| 03/23/1976 | US3946314 Remote control programming system |
| 03/23/1976 | US3946244 Christmas tree lighting control |
| 03/02/1976 | US3940918 Programmer clocks for banks and like institutions |
| 02/10/1976 | US3937910 Timer having a variable operation period |
| 02/03/1976 | US3936752 Device for presetting a television program and the like |
| 01/20/1976 | US3934120 Device for electroconductive connection and reading |
| 01/06/1976 | US3930359 Digital cooking timer means having concentric time indicator disc and manual readout indicator |