Patents
Patents for G04C 10 - Arrangements of electric power supplies in time-pieces (1,992)
08/1989
08/02/1989EP0326312A2 Electronic wrist watch
08/01/1989US4853043 Solar battery for time piece
07/1989
07/27/1989WO1989006833A1 Electronic wrist watch equipped with power generator
07/11/1989US4847616 Mode selection circuit
07/04/1989US4845694 Battery cap for a watch case
06/1989
06/29/1989WO1989003598A3 Water-activated micro-electronic circuits
06/28/1989EP0172182B1 Device for mains-operated switch timers with electric running reserve
06/21/1989EP0320754A1 Device for rewinding the main spring of a clockwork comprising a photo-electric cell
04/1989
04/20/1989WO1989003598A2 Water-activated micro-electronic circuits
04/11/1989US4821249 Timepiece movement
04/05/1989CN1032246A Analogue electronic timepiece
03/1989
03/29/1989EP0309164A2 Analog electronic timepiece
03/28/1989US4817063 Power source control circuit for an analog electronic timepiece
01/1989
01/25/1989CN1030650A Charging device of electronic apparatus
01/18/1989EP0299371A2 Shutter for a battery housing, in particular for wrist watches
01/18/1989EP0170664B1 Device for mains-operated switch timers with electric running reserve
01/18/1989CN1030485A Quartz analog watch movement with lavet-stepping motor and large energy cell
01/17/1989US4799003 Mechanical-to-electrical energy converter
01/11/1989EP0298707A2 Charging device for electronic apparatus
01/11/1989EP0298189A2 Quartz analog watch movement with lavet-stepping motor and large energy cell
12/1988
12/22/1988DE3812172A1 Electronic clock
12/14/1988CN88202669U Clock and wrist watch device
12/14/1988CN88102603A 电子时计 Electronic timepiece
12/13/1988US4791621 Solar cell powered clock having a decorative pendulum
11/1988
11/29/1988CA1245464A1 Solar clock and a movement for same
11/17/1988WO1988009062A1 Liquid activated battery
11/15/1988US4785436 Photovoltaic electronic timepiece
11/15/1988US4785435 Self-chargeable electronic timepiece with operating voltage checking
10/1988
10/12/1988EP0285838A1 Autonomous radio-controlled clock
10/04/1988US4775963 Analog watch having two motors and comprising means for perpetually indicating the day of the month
08/1988
08/18/1988DE3702993A1 Quartz clock
08/09/1988US4763310 Electronic clock with solar cell and rechangeable battery
08/09/1988US4763308 Battery housing for an electronic watch
07/1988
07/26/1988US4760564 Analog electronic timepiece with charging function
07/20/1988CN87100179A Electronic timer for homing pigeon
07/19/1988US4759003 Electronic analog timepiece with voltage checking function
06/1988
06/29/1988EP0272515A1 Battery cover for a watch case
06/01/1988CN87203228U Self-rechargeable electronic wristwatch
05/1988
05/18/1988EP0267440A1 Analogous clock with two motors having a perpetual day counter
05/10/1988US4744066 Quartz analog movement with lavet stepping motor and large energy cell
03/1988
03/09/1988EP0258563A2 Alarm clock with a battery mounting support
03/08/1988US4730287 Power supply for electronic timpiece
02/1988
02/04/1988DE3625989A1 Timepiece
02/02/1988US4722876 Liquid activated battery
01/1988
01/14/1988WO1988000363A1 Running display for digital-display electronic clocks and watches
01/14/1988DE3621349A1 Electronic timepiece
01/13/1988CN87205919U Liquid crystal timer for carrier pigeon contest
12/1987
12/26/1987CN87203900U Clock for competition of carrier pigeons
12/22/1987US4714352 Electronic device powered by solar cells
11/1987
11/26/1987DE3617211A1 Timepiece having a warning display device
11/03/1987US4704037 Watch operating mechanism mounting arrangement
10/1987
10/27/1987US4702613 Electronic timepiece driven by a plurality of stepping motors and powered by a solar cell
10/21/1987EP0242088A2 Electronic timepiece with a solar celL
10/14/1987EP0241219A2 Electronic timepiece
10/14/1987EP0241202A2 Analog electronic timepiece with charging function
10/07/1987EP0239820A1 Mechanical-to-electrical energy converter
09/1987
09/22/1987US4695168 Electronic watch having two motors and comprising means for perpetually indicating the day of the month
09/09/1987EP0236046A2 Electronic analog timepiece
09/01/1987US4690568 Battery lifetime indicator for a stopwatch
08/1987
08/27/1987DE3605543A1 Circuit arrangement for limiting the supply voltage of a clock circuit
08/12/1987EP0231451A1 Electronic clock with two motors and provided with a perpetual calender
07/1987
07/15/1987EP0228635A2 Electronic watch
06/1987
06/30/1987US4676662 Large clock driven by solar cell
05/1987
05/19/1987US4667140 Battery powered motor drive with temperature-responsive battery heater
05/19/1987US4666313 Timepiece and drive unit therefor
04/1987
04/21/1987US4659233 Timepiece with built-in timer
04/02/1987DE3534644C1 Arrangement for the energy supply of an electronic clockwork or a clockwork driven by an electric motor
03/1987
03/31/1987US4653931 Self-charging electronic timepiece
02/1987
02/19/1987DE3529341A1 Solar cell module
02/17/1987US4644246 Electric power supply system for portable miniature size power consuming devices
01/1987
01/28/1987EP0209717A1 Battery compartment for an electronic watch
01/21/1987EP0208986A1 Compact electric apparatus powered by solar cells, in particular a solar watch
01/20/1987US4637732 Hand held athletic officiating timers
01/06/1987US4634953 Electronic equipment with solar cell
12/1986
12/30/1986US4632571 Electronic watch module able to adapt the polarity of a cell to that of the watch circuit
12/23/1986US4630936 Electronic timepiece
12/16/1986US4629329 Electronic wristwatch
12/09/1986US4627268 Method for calibrating instruments for time interval measurements
12/03/1986EP0203330A1 Electronic time piece with a detector of the end of the life span of the battery
10/1986
10/22/1986EP0198390A2 Photovoltaic clock and time piece for such a clock
09/1986
09/16/1986US4611923 Electronic timepiece with a depth gauge
09/10/1986EP0194136A2 Electronic timepiece with a solar cell
09/03/1986EP0193045A1 Electric clock module suited for adapting the battery polarity to that of the circuit
06/1986
06/04/1986EP0183568A2 Electronic timepiece with a depth gauge
04/1986
04/09/1986EP0177085A1 Case for an electronic watch
02/1986
02/26/1986EP0172182A1 Device for mains-operated switch timers with electric running reserve.
02/05/1986EP0170303A1 An electric power supply system for portable miniature size power consuming devices
11/1985
11/19/1985US4553851 Timepiece operated by solar cells
10/1985
10/30/1985EP0159688A1 Electronic equipment with solar cell
08/1985
08/27/1985US4537514 Multi-function analog display stopwatch
07/1985
07/18/1985WO1985003144A1 Device for mains-operated switch timers with electric running reserve
07/18/1985WO1985003143A1 Device for mains-operated switch timers with electric running reserve
07/16/1985US4529322 Booster circuit for electronic watch elements
07/09/1985US4527906 Digital menstrual cycle indicator
04/1985
04/16/1985US4511260 Improved quartz watch having a semi-rigid watch case bottom and a time setting system using an electrical contact
02/1985
02/05/1985US4498040 Reference voltage circuit
12/1984
12/18/1984US4488345 Method and apparatus for assembling a watch case having improved structure for installing a battery cell
12/11/1984US4487512 Programmable alarm clock apparatus
11/1984
11/27/1984US4485432 Electronic voltage drop circuit
09/1984
09/26/1984EP0119223A1 Portable mini ac generator/dc accumulator for a mini power capacity
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