| Patents for G04C 3 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (4,122) |
|---|
| 12/06/1977 | US4061936 Synchronous motor |
| 12/06/1977 | US4060971 Solid state watch with inertial switch |
| 11/08/1977 | US4057698 Switching mechanism of a timepiece |
| 11/01/1977 | US4055945 Frequency adjustment means for an electronic timepiece |
| 10/25/1977 | US4055785 Stepping motor for electronic timepiece |
| 10/11/1977 | US4053688 Battery holder |
| 10/04/1977 | US4051665 Operating switch and retainer for digital watch cases |
| 09/20/1977 | USRE29403 Quartz crystal wrist watch |
| 09/06/1977 | US4045950 Control apparatus for an intermittently rotated wheel |
| 08/30/1977 | US4044543 Switching mechanism of an electronic wrist watch |
| 08/23/1977 | US4043118 Pendulum device for battery-powered clockwork mechanism |
| 08/23/1977 | US4043115 Push button assembly and electronic watch including the same |
| 08/09/1977 | US4040248 Alarm electric watch |
| 08/09/1977 | US4040247 Clock drive apparatus |
| 08/02/1977 | US4038814 Wristwatch structure |
| 07/26/1977 | US4037402 Circuit arrangement for a quartz controlled electrical clock |
| 07/26/1977 | US4037400 Drive device for electric clock |
| 07/19/1977 | US4037179 Mechanical filter device |
| 07/19/1977 | US4036007 Light emitting diode watch with acceleration responsive switch |
| 07/19/1977 | US4036006 Time-keeping apparatus |
| 07/12/1977 | US4035677 Rotor of a micro motor |
| 07/12/1977 | US4034551 Safety feature for function control circuit |
| 06/28/1977 | US4032864 Electronic circuit having a misfet as an amplifying element |
| 06/28/1977 | US4032827 Driver circuit arrangement for a stepping motor |
| 06/28/1977 | US4032731 Push-pull switch for use in an electronic watch |
| 06/21/1977 | US4031448 Motor driving system and circuit therefor |
| 06/21/1977 | US4031438 Control device for the rotary motor of a watch |
| 06/21/1977 | US4031348 Push-button assembly switch for watches |
| 06/21/1977 | US4031341 Dual function pusher and rotate switch for solid state digital watches having detent spring |
| 06/14/1977 | US4029980 Rotary electric motor |
| 06/14/1977 | US4028880 Life display device of a cell incorporated into an electronic timepiece |
| 06/07/1977 | US4028509 Simplified tabulator keyboard assembly for use in watch/calculator having transparent foldable flexible printed circuit board with contacts and actuator indicia |
| 05/24/1977 | US4024677 Method of manufacturing an electric timepiece and electric timepiece obtained by carrying out this method |
| 05/17/1977 | US4023346 Wrist watch with time display control switch |
| 05/10/1977 | US4023002 Pusher and switch device for electronic watch |
| 05/10/1977 | US4022016 Gear drive for an indicating mechanism |
| 05/10/1977 | US4022013 Regulating device for electric timepieces |
| 05/03/1977 | US4020627 Liquid crystal display electronic watch |
| 03/29/1977 | US4014164 Electronic timepiece including battery monitoring arrangement |
| 03/15/1977 | US4011714 Device for maintaining the oscillation of a balance for a timepiece |
| 03/15/1977 | US4011713 Battery powered electronic timepiece with voltage regulation |
| 03/08/1977 | US4010602 High frequency reed time governor for a timepiece |
| 02/22/1977 | US4008565 Timepiece having an oscillating regulating member |
| 02/15/1977 | US4007582 Method and apparatus for synchronizing an electrodynamic clockwork drive |
| 02/08/1977 | US4007347 Simplified actuating switch for electronic timepieces |
| 02/08/1977 | US4006584 Electronic timepiece |
| 01/25/1977 | US4004411 Counting mechanism for timepiece |
| 01/18/1977 | US4003197 Watch monitor |
| 01/11/1977 | US4002021 Rotary escapement for timepiece |
| 12/28/1976 | US3999369 Electromechanical watch movement |
| 12/21/1976 | US3998044 Electronic timepiece |
| 11/23/1976 | US3992870 Watertight nonconductive electronic watchcase including conductive internal plate |
| 11/23/1976 | US3992869 Electronic timepiece |
| 11/23/1976 | US3992868 Timepiece with calendar mechanism |
| 11/16/1976 | US3991556 Clock or watch movement |
| 11/16/1976 | US3991554 Watch construction |
| 11/16/1976 | US3991553 Low voltage battery indicator for a solid state watch |
| 11/09/1976 | US3990226 Electromechanical clock |
| 10/19/1976 | US3987259 Membrane switch apparatus having sequential bridging contact arrangement |
| 10/19/1976 | US3986336 Improvement in or for a torsion pendulum clock |
| 10/12/1976 | US3984972 Transducer for quartz crystal timepiece |
| 09/28/1976 | US3983350 Liquid contact switch assembly incorporated within wrist watch casing |
| 09/21/1976 | US3981139 Self contained battery operated clock fabricated on a single printed circuit board |
| 09/14/1976 | US3979901 Construction of the gear train for a timepiece |
| 09/07/1976 | US3979608 Solid state binary logic signal source for electronic timepiece or the like |
| 09/07/1976 | US3978654 Motion transformer |
| 09/07/1976 | US3978652 Formed contact spring for electro-mechanical watches |
| 08/31/1976 | US3978358 Rotary electric motor |
| 08/31/1976 | US3978355 Damping in electric clock |
| 08/31/1976 | US3978296 Switching system for an electronic timepiece |
| 08/24/1976 | US3975899 Multi-function watch casing |
| 08/24/1976 | US3975897 Electronic display digital wristwatch |
| 08/24/1976 | US3975896 Switching device for electronic timepiece |
| 08/17/1976 | US3974638 Hourglass watch |
| 08/10/1976 | US3974466 Electrochemical reed filter |
| 08/10/1976 | US3974351 Wrist watch push-button device |
| 08/03/1976 | US3973153 Rotor for an electronically controlled micromotor |
| 08/03/1976 | US3973099 Push button switch for electronic watch |
| 08/03/1976 | US3972178 Electrically powered timepiece |
| 08/03/1976 | US3972177 Control mechanism for time setting and similar functions |
| 07/27/1976 | US3971610 Conductive elastomeric contacts and connectors |
| 07/27/1976 | US3971204 Circuit for driving a DC motor for a clock |
| 07/13/1976 | US3969642 Step motor for electronic timepiece |
| 06/29/1976 | US3966498 Energy cell configuration for a timepiece |
| 06/29/1976 | US3965667 Device for the maintenance and control of the oscillations of the balance wheel of a timepiece |
| 06/15/1976 | US3963885 Gravity actuated miniature switch for watch having switch actuator magnetic retaining structure |
| 06/01/1976 | US3961213 Motion transformer |
| 06/01/1976 | US3961209 Oscillator for time measurement |
| 06/01/1976 | US3961145 Miniature electronic watch switch |
| 05/25/1976 | US3958410 Termination device from hairspring-hub to drive coil on two conductor hairspring |
| 05/18/1976 | US3958182 Electronic circuit for supplying energizing pulses of predetermined duration to an electric motor |
| 05/18/1976 | US3958167 Pulse motor |
| 05/18/1976 | US3956941 Escapement-type drive mechanism for watches and the like |
| 05/11/1976 | US3955356 Watch having positioned controlled display actuator |
| 05/04/1976 | USRE28794 Balance wheel |
| 04/27/1976 | US3952497 Method and apparatus for synchronizing andoscillating system which is driven by an energy storage device |
| 04/20/1976 | US3952176 Multiple pole pushbutton rotary switch |
| 04/20/1976 | US3950938 Two conductor hairspring-hub arrangement for electric watches |
| 04/13/1976 | US3949547 Escapement or counting mechanism for a timepiece having a balance-wheel |
| 04/13/1976 | US3949545 Quartz crystal timepiece |