| Patents for G04B 13 - Gearwork (1,123) |
|---|
| 12/23/1980 | CA1091957A1 Copper-zinc-nickel-manganese alloys |
| 07/08/1980 | US4211025 Biorhythm cycle display apparatus |
| 03/19/1980 | EP0008832A2 Clockwork with hands comprising a differential-gear mechanism |
| 03/11/1980 | US4192132 Quartz controlled analog watch |
| 03/06/1980 | WO1980000380A1 Reductor for electromechanical wrist watches with stepping motor and central seconds hand |
| 03/04/1980 | US4191067 Ratchet feed mechanism |
| 01/08/1980 | US4182114 Time-piece with electric motor driven display and planetary motion work |
| 12/11/1979 | US4177630 Sweep seconds to jump seconds conversion for clocks |
| 11/27/1979 | US4175374 Timepiece |
| 11/20/1979 | US4174607 Mechanism for self-wind watches |
| 11/15/1979 | WO1979000930A1 Device for driving a toothed wheel by a step-by-step bipolar motor |
| 04/03/1979 | US4147568 Copper-zinc-nickel-manganese alloys |
| 12/05/1978 | US4127984 Slip mechanism of clock |
| 11/28/1978 | US4127041 Gear for precision devices |
| 10/31/1978 | US4122659 Digital clock of leaf type |
| 08/22/1978 | US4108016 Device of preventing reverse transmission of motion in a gear train |
| 08/08/1978 | US4104859 Reversal preventing device of electric clock |
| 05/23/1978 | US4090354 Counting mechanism for timepiece |
| 05/23/1978 | US4090352 Reducing gear-train of an electronic watch with analog display |
| 02/21/1978 | US4074517 Gear train for a wrist watch |
| 05/10/1977 | US4022016 Gear drive for an indicating mechanism |
| 09/14/1976 | US3979901 Construction of the gear train for a timepiece |
| 01/06/1976 | US3930361 Slip wheel structure of a watch movement |