| Patents for G04B 19 - Indicating the time by visual means (7,220) |
|---|
| 12/11/1979 | US4177630 Sweep seconds to jump seconds conversion for clocks |
| 11/27/1979 | US4175378 Decimal timekeeping instrument |
| 11/27/1979 | US4175373 Digital clock |
| 10/23/1979 | US4171610 Calendar watch movement |
| 10/16/1979 | CA1064267A1 Timepiece calendar indexing apparatus |
| 08/07/1979 | US4163362 Orbital clock |
| 07/31/1979 | US4162609 Film display clock |
| 07/17/1979 | US4161099 Day and date indicator for clocks |
| 07/17/1979 | US4161098 Clock having a linear scale |
| 06/26/1979 | US4158947 Yacht timer |
| 05/29/1979 | CA1055259A1 Friction detent to permit setting of digital clock |
| 05/08/1979 | US4152888 Electronic wrist watch |
| 05/01/1979 | US4151669 Leaf type indicating device |
| 04/24/1979 | US4150538 Dial attaching device for watch |
| 03/20/1979 | US4144708 Omnidirectional clock |
| 03/06/1979 | US4142363 Calendar watch movement with date-indicating member |
| 03/06/1979 | US4142306 Time-space clock |
| 01/30/1979 | US4136514 Electro-mechanic calendar timepiece |
| 01/09/1979 | US4133170 Global timepiece |
| 12/26/1978 | US4130987 Timepiece |
| 12/05/1978 | US4127985 Watch |
| 11/28/1978 | US4126992 Stem mechanism for a watch |
| 11/21/1978 | US4125994 Train structure of a timepiece |
| 11/14/1978 | US4124975 Calendar watch |
| 11/14/1978 | CA1042219A1 Solid-state display for time-piece |
| 11/07/1978 | US4123895 Gear train of quartz-crystal timepiece having analogue display |
| 10/31/1978 | US4122659 Digital clock of leaf type |
| 10/10/1978 | US4118924 Display system for watches and the like |
| 10/03/1978 | US4117662 Watches |
| 09/26/1978 | US4115994 Dial illumination means |
| 09/05/1978 | US4111363 Portable water fountain display apparatus |
| 08/29/1978 | US4109458 Date and day correcting device of a timepiece |
| 08/08/1978 | US4104866 Timepiece |
| 08/08/1978 | US4104859 Reversal preventing device of electric clock |
| 08/01/1978 | US4103484 Time indicating device |
| 07/25/1978 | US4102121 Three dimensional time piece |
| 07/04/1978 | US4098072 Digital clock gearing |
| 06/13/1978 | US4094464 Three dimensional display device using water fountain |
| 06/06/1978 | US4092823 Timepiece having display cylinders |
| 05/23/1978 | US4090351 Gravity clock |
| 05/09/1978 | US4087960 Solar battery wristwatch |
| 05/09/1978 | US4087959 Driving mechanism of a member of timepiece moving intermittently |
| 04/18/1978 | US4084403 Driving mechanism for a timepiece |
| 04/04/1978 | US4081950 Calendar mechanism for timepiece |
| 03/21/1978 | US4079582 Electronic timepiece |
| 02/21/1978 | US4074517 Gear train for a wrist watch |
| 02/07/1978 | US4072005 Clock device |
| 01/31/1978 | US4070822 Timer mechanism for use in a clock |
| 01/31/1978 | US4070819 Vertical clock |
| 01/10/1978 | US4067186 Rotatable crystal and bezel assembly for achieving special visual effects in a timepiece |
| 12/06/1977 | US4060977 Timepiece |
| 12/06/1977 | US4060976 Calendar ring driving wheel for timepieces |
| 12/06/1977 | US4060972 Digital clock |
| 11/29/1977 | US4059953 Timepiece calendar indexing apparatus |
| 11/29/1977 | US4059952 Bio-rhythm calculator |
| 11/15/1977 | US4057959 Digital timer and method of operating such |
| 11/08/1977 | US4056927 Time giving device |
| 09/27/1977 | US4050233 Stepping mechanism for watches |
| 09/27/1977 | US4050232 Construction of a frame of a digital clock |
| 09/20/1977 | US4048795 Timepiece calendar mechanism |
| 08/30/1977 | US4044548 Time indicating apparatus and transmission mechanism therefor |
| 08/23/1977 | US4043116 Timepiece comprising a flat display device exposed through an opening in a case |
| 08/09/1977 | US4040160 Method of manufacturing symbol indication drum |
| 07/26/1977 | US4037401 Apparatus for adjusting a date ring of a watch |
| 07/19/1977 | US4036134 Symbol indication drum |
| 07/19/1977 | US4036009 Horological instrument |
| 07/19/1977 | US4036005 Clock with hour and quarter hour striking mechanism |
| 07/12/1977 | US4035617 Tide and time calculating device |
| 07/12/1977 | US4034554 Clock with moving colored display |
| 07/12/1977 | US4034549 Shadow clock |
| 06/14/1977 | US4028881 Mechanism for correcting calendar in a watch |
| 06/07/1977 | US4027550 Ratchet claw |
| 06/07/1977 | US4027469 Dating mechanism for calendar clocks |
| 06/07/1977 | US4027468 Day-date mechanism for travel clock |
| 05/31/1977 | US4026100 Timepiece with calendar mechanism |
| 05/10/1977 | US4022376 Digital display mechanism |
| 05/10/1977 | US4022016 Gear drive for an indicating mechanism |
| 05/10/1977 | US4022015 Time indicating device |
| 04/12/1977 | US4017154 Display device |
| 03/29/1977 | US4014163 Clockwork for designating time and tide |
| 03/22/1977 | US4012900 Setting means for estimated time of arrival clock hands |
| 03/22/1977 | US4012898 Rotary indicating plate type digital display device |
| 02/08/1977 | US4006588 Wrist watch |
| 02/08/1977 | US4006587 Wrist-watch with wristlet end secured to top of case |
| 02/01/1977 | US4005570 Leaf-type digital clock |
| 01/11/1977 | US4002022 Electro-mechanical sign structure with alternating faces formed by several adjacent dihedral angles |
| 01/11/1977 | US4002020 Four-sided water-resistant watch-case |
| 11/30/1976 | US3994125 Winding time-setting push-button assembly for a watch |
| 11/23/1976 | US3992872 Display device |
| 11/23/1976 | US3992868 Timepiece with calendar mechanism |
| 11/09/1976 | US3990165 Mechanic digital display device |
| 11/02/1976 | US3989603 Anodizing aluminum, embossing, removal of aluminum oxide layer |
| 10/26/1976 | US3987619 Visual time indicator |
| 10/05/1976 | US3983691 Winding and setting mechanism for watch movements |
| 10/05/1976 | US3983688 World clock device |
| 09/28/1976 | US3982388 Digital display mechanism for a time-keeper |
| 09/21/1976 | US3982104 Tide and time calculating device |
| 09/07/1976 | US3978655 Time clock |
| 08/31/1976 | US3977275 Gear mechanism for transmission of small forces |
| 08/31/1976 | US3977179 Display mechanism for timepieces |