Patents
Sitemap › G04 - Horology › G04C - Electromechanical clocks or watches › G04C 3 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
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)
06/1982
06/15/1982US4335454 Gear train mechanism for a timepiece
06/15/1982US4335453 Electronic watch
05/1982
05/18/1982CA1123615A1 Thermoelectrically-powered wrist watch
05/11/1982US4329601 Stepping motor
04/1982
04/20/1982US4326278 Electronic timepiece
04/06/1982US4323996 Electronic wristwatch having electric terminal contacts
04/06/1982US4323834 Movement detector for a stepping motor
03/1982
03/24/1982EP0048217A1 Electronic timepiece
03/23/1982US4321521 Detection device of electronic timepiece
03/23/1982US4321520 Electronic timepiece
03/23/1982US4321519 Magnetic field detection device for electronic timepiece
03/16/1982US4320485 Manually-actuated contact switch arrangement for electronic watch
03/16/1982US4320482 Switch for an electronic timepiece
03/09/1982US4319351 Switch structure for a timepiece
02/1982
02/23/1982US4317188 Magnetic shielding plate for a step motor in an electronic wristwatch
02/23/1982US4317187 System for mounting the coil of the motor in an electric watch
02/16/1982US4316277 Electronic clock movement assembly
02/09/1982US4315329 Load measuring device for the gear train of a timepiece
02/02/1982US4314146 Analog display device
01/1982
01/19/1982USRE30852 Electronic timepiece
01/19/1982US4312059 Electronic timepiece
01/19/1982US4312058 Electronic watch
01/05/1982CA1115533A1 Gear train for timepiece with a stepping motor
12/1981
12/29/1981US4308607 Electronic timepiece
12/29/1981US4308606 Clock with rotary pendulum
12/23/1981EP0042079A1 Mounting plate for electronic watches
12/22/1981US4307460 Electronic digital alarm clock
12/22/1981US4307458 Watch for displaying multiple world times
12/01/1981US4303997 Analog alarm timepiece
12/01/1981US4303962 Electrical contact arrangement for a battery-operated instrument
11/1981
11/24/1981US4302829 Electronic timepiece
11/24/1981US4302828 Electronic timepiece
11/10/1981US4300223 System for making-up steps lost by the motor of a time-piece
11/10/1981US4300222 Electronic timepiece
11/03/1981US4297838 Electronic timepiece
10/1981
10/20/1981US4296489 Electronic timepiece
10/20/1981US4296488 Watch movement construction
09/1981
09/29/1981US4292680 Electronic timepiece
09/22/1981CA1109276A1 Electronic timepiece comprising two different displays
08/1981
08/11/1981US4283783 Drive control system for stepping motor
08/06/1981WO1981002207A1 Electric motor control device
08/04/1981US4282592 Indicating member advancing mechanism
08/04/1981US4282513 Process and arrangement for the electronic control of the input pulses of a manually rotatable pulse generator into an electronic counter
07/1981
07/28/1981US4281405 Reduction of energy consumption of electronic timepiece
07/21/1981US4279072 Arrangement for the disassembly of a circuit board
07/14/1981US4279029 Electronic timepiece
07/14/1981CA1104840A1 Adjusting device for an electronic digital display
07/07/1981US4277841 Elapsed time indicator
06/1981
06/30/1981US4276634 Battery operated clock
06/30/1981US4276632 Hatch locking mechanism for the battery compartment of a wristwatch
06/30/1981US4276630 Electronic watch movement
06/30/1981US4276628 Electronic timepiece
06/30/1981US4276626 Electronic watch
06/24/1981EP0030696A1 Miniature push-button
06/24/1981EP0030611A2 Method and arrangement for the control and regulation of a motor having a permanent-magnet rotor
06/16/1981US4274153 Movement construction for electronic timepiece
06/16/1981US4274150 Electronic watch
06/09/1981US4272841 Timepiece
06/09/1981US4272837 Electronic timepiece with rotation detector
06/02/1981US4271496 Electronic watch
06/02/1981US4271494 Correcting device for calendar in an analog type electronic watch
06/02/1981US4271493 Electronic timepiece
06/02/1981US4270834 Electric contact for a battery-operated instrument
05/1981
05/27/1981EP0029204A1 Mechanism for positioning a centre wheel
05/26/1981US4270198 Electronic timepiece
05/26/1981US4270197 Analog display electronic stopwatch
05/26/1981US4270194 Electronic alarm timepiece
05/26/1981US4270066 Miniature motor for an electronic timepiece including a stator having a non-magnetic reinforcing ring
05/19/1981US4268913 Electronic calculator watch
05/13/1981EP0028433A1 Drive means for an apparatus requiring an intermittent drive
05/05/1981US4266291 Electromagnetic swing device
05/05/1981US4266290 Electronic wristwatch control mechanism
05/05/1981US4266289 Calendar correcting mechanism
05/05/1981US4266288 Electronic timepiece
05/05/1981US4266150 Circuit arrangement for operating electromechanical switching devices
04/1981
04/30/1981WO1981001205A1 Step by step micromotor for a clockwork
04/28/1981US4264969 Standardized electronic watch movement
04/22/1981EP0027250A1 Clockwork with display of seconds on demand
04/21/1981US4263667 Methods and apparatus for assembling an electrical instrument
04/21/1981US4263666 Device for correcting digital display used in electronic timepieces
04/21/1981US4263590 Method and arrangement for the generating and processing of electrical impulses
04/14/1981US4262353 Transducer for electronic timepiece
04/14/1981US4262351 Electronic timepiece
04/14/1981US4262350 Solid state electronic timepiece with lamp
04/14/1981US4262349 System for signalling the termination of the lifetime of a battery for electronic timepieces
04/07/1981US4261050 Electronic watch having a stepping motor equipped with an alarm system
04/07/1981US4261048 Analog quartz timepiece
04/07/1981US4261046 Timepiece
04/01/1981EP0026002A1 Bipolar single-phase stepping motor with two directions of rotation
03/1981
03/31/1981US4259737 Electronic watch
03/31/1981US4259736 Electronic timepiece
03/31/1981US4259551 External operation device for electronic timepieces
03/17/1981US4257114 Electronic timepiece
03/17/1981US4257113 Electromechanical calendar timepiece
03/11/1981EP0024893A1 Waterproof sport watch
03/11/1981EP0024737A1 Detector for the movement of a stepping motor
03/10/1981US4255801 Electronic watch
03/03/1981US4254491 Pulse control for an electric clock
02/1981
02/24/1981US4253177 Apparatus for manual adjustment of a clock
02/24/1981US4253176 Gear train mechanism of a watch
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