Patents for G04B 19 - Indicating the time by visual means (7,220)
12/1982
12/14/1982US4363555 Fluid-tight watch case with U-shaped bezel
12/07/1982US4362397 Analog-display timepiece
12/07/1982US4362391 Watch with a calendar display and hand setting device actuated by a setting shaft
11/1982
11/25/1982WO1982004134A1 Waterproof watchcase
11/17/1982EP0064950A1 Water-proof watch case
11/02/1982US4357695 Reduction gear for electronic timepiece
11/02/1982US4357691 Rectangular-faced clock
11/02/1982CA1134624A1 Reduction gear of electronic wristwatch with stepping motor and sweep second hand
10/1982
10/27/1982EP0063543A1 Timepiece with control mechanism
10/14/1982WO1982003472A1 Celestial clock
10/12/1982US4353178 Calendar display device
10/06/1982EP0061519A1 Clock with interchangeable dial
09/1982
09/30/1982WO1982003281A1 Watch box
09/21/1982CA1131920A1 Manual date advance mechanism for a watch
08/1982
08/31/1982US4347594 World watch
06/1982
06/29/1982USRE30987 Omnidirectional clock
06/29/1982US4337530 Universal time-keeping system and apparatus
06/15/1982US4335454 Gear train mechanism for a timepiece
06/08/1982US4334297 Globe clock device and methods of making and using the same
05/1982
05/25/1982US4332020 Adhesive time zone adjuster
05/25/1982CA1124086A1 Gear train for analog display timepiece
05/19/1982EP0052070A1 Watch with a perpetual date mechanism
05/18/1982US4330877 Electrically illuminated wrist watch dial
04/1982
04/27/1982US4327428 Decorative plate for a timepiece
04/27/1982CA1122421A1 Instantaneous calendar device for timepieces
03/1982
03/16/1982US4320483 Attaching device of a dial on stationary parts of a timepiece movement
03/16/1982US4320480 Switch chain with switch riders for switch clocks
01/1982
01/05/1982CA1115533A1 Gear train for timepiece with a stepping motor
12/1981
12/29/1981US4308610 Gear train for analog display timepiece
12/29/1981US4308604 Globe clock
12/22/1981US4307459 Self-advancing teaching device
12/15/1981US4306141 Mechanical astrological calculating device
11/1981
11/03/1981US4298972 Alarm signaling time detecting device for leaf type digital clock
10/1981
10/07/1981EP0036946A1 Electronic digital clock
10/06/1981US4293938 Alarm signaling time detecting device for digital clock
09/1981
09/22/1981US4291401 Device for securing a watch dial to a watch-movement plate
09/22/1981US4291398 Calendar display wheel guard construction of timepiece
09/22/1981US4291397 Manual date advance mechanism for a watch
09/01/1981US4287586 Signaling time detecting device for leaf type digital clock
08/1981
08/04/1981US4282592 Indicating member advancing mechanism
07/1981
07/21/1981US4280211 Clock apparatus
06/1981
06/24/1981EP0030658A1 Drive for the hands of a timepiece
06/02/1981US4271493 Electronic timepiece
06/02/1981US4271492 Sound actuated clock-mirror
05/1981
05/27/1981EP0029204A1 Mechanism for positioning a centre wheel
05/26/1981US4270195 Alarm setting indication device for digital clock
05/05/1981US4266289 Calendar correcting mechanism
05/05/1981US4266288 Electronic timepiece
04/1981
04/14/1981US4262350 Solid state electronic timepiece with lamp
04/14/1981US4262348 Liquid operated clock
04/07/1981US4261047 Date driving mechanism of watch
04/07/1981US4261046 Timepiece
03/1981
03/31/1981US4259735 Timepiece movement with differential gear mechanism
03/17/1981US4257113 Electromechanical calendar timepiece
03/11/1981EP0024937A2 Rectangular-faced clock
02/1981
02/24/1981US4253171 Electromechanical character display
02/24/1981US4253170 Time indicating light fixture
02/10/1981US4250575 Illuminator for analog timepiece dial
02/03/1981US4249251 Gear train for timepiece with a stepping motor
01/1981
01/27/1981US4247926 Watch movement
01/13/1981US4245323 Electronic calculator with time display function
01/06/1981US4244038 Watch having adjustable date and day indicators
01/06/1981US4243329 Watch movement construction
01/06/1981CA1092836A1 Electronic timepiece with selective display of various time functions
12/1980
12/23/1980US4241442 Timepiece with shaped components
12/23/1980US4240249 Instantaneous calendar device for timepieces
12/16/1980US4240153 Biorhythm display device
11/1980
11/18/1980US4234943 Month correcting mechanism for calendar timepieces
11/11/1980US4232510 Timepiece
10/1980
10/21/1980US4228644 Display device for calendar timepieces
10/15/1980EP0017239A2 Attaching device of a dial on stationary parts of a timepiece movement
09/1980
09/16/1980US4223402 Clock hand linkage and support assembly
09/16/1980US4222227 Clock dial
08/1980
08/26/1980US4218872 Display device for timepiece
08/19/1980CA1083834A1 Clock face for omnidirectional viewing
07/1980
07/22/1980US4213295 Arrangement for securing a dial to a plate in a timepiece
07/08/1980US4211025 Biorhythm cycle display apparatus
07/01/1980US4209973 Electronic timepiece time zone display
07/01/1980CA1080488A1 Rotatable crystal and bezel assembly for achieving special visual effects in a timepiece
06/1980
06/24/1980US4208870 Clock-oriented visual reminder and method
06/17/1980US4207735 Dial and movement fixing structure
06/10/1980US4206592 Timepiece for identifying time by color
06/03/1980US4205521 Decorative clock
05/1980
05/27/1980US4204395 Calendar mechanism of a portable timepiece
05/06/1980US4201040 Watch movement construction
04/1980
04/22/1980US4198808 Calendar timepiece
04/01/1980CA1074558A1 Three dimensional display device using water fountain
03/1980
03/25/1980US4194353 Analog display calendar watch
03/19/1980EP0008832A2 Clockwork with hands comprising a differential-gear mechanism
03/11/1980US4192136 Adjustment of readout members in a digital clock
03/06/1980WO1980000380A1 Reductor for electromechanical wrist watches with stepping motor and central seconds hand
03/04/1980US4191067 Ratchet feed mechanism
02/1980
02/19/1980US4188777 Electro-mechanical calendar watch
02/19/1980US4188774 Electro-mechanical calendar timepiece
02/07/1980WO1980000197A1 Calendar mechanism of instantaneous action
01/1980
01/15/1980US4183203 Electronic timepiece time zone display
01/08/1980US4182114 Time-piece with electric motor driven display and planetary motion work
01/08/1980US4182109 Calendar mechanism for timepieces
12/1979
12/13/1979WO1979001104A1 World watch
12/11/1979US4177634 Multi-reflection clock
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