| Patents for G04C 13 - Driving mechanisms for clocks by master clocks (402) |
|---|
| 04/26/1984 | WO1984001630A1 A time display system |
| 03/06/1984 | US4435087 Motor-driven movement for timepiece |
| 01/17/1984 | US4426159 Electronic time keeping device |
| 12/27/1983 | US4423342 Stepping micromotor capable of rotation in both senses |
| 11/15/1983 | US4415274 Step motor |
| 08/31/1983 | EP0087387A1 Method and means for controlling a bidirectional step-motor |
| 08/10/1983 | EP0085648A1 Stepping motor with two directions of rotation, in particular for electronic time pieces, and motor unit comprising the same |
| 08/09/1983 | US4398107 Micro stepping motor |
| 08/02/1983 | US4396846 Stepping motor with rotor-positioning magnet |
| 07/26/1983 | CA1150866A1 Teleindicator for information boards |
| 07/06/1983 | EP0083034A1 Bi-directional microstepmotor |
| 06/07/1983 | US4387312 Stepping polyphased motor for a clockwork mechanism |
| 05/10/1983 | US4382686 Quartz watch with analogical time display, comprising a manually controlled time altering device |
| 04/27/1983 | EP0077342A1 Stepping motor for quartz watch |
| 02/01/1983 | US4371821 Electromagnetic motor rotatable in either direction |
| 01/18/1983 | US4369385 Single-phase step micromotor |
| 01/11/1983 | CA1139092A1 Photooxidation by exposure to visible light |
| 01/04/1983 | US4367049 Driving device especially for a timepiece |
| 12/21/1982 | US4364669 Chronographic watch |
| 11/30/1982 | US4361790 Electromagnetic motor rotatable in either direction |
| 11/30/1982 | US4361772 Micro stepping motor for electronic watches |
| 11/11/1982 | WO1982003928A1 Stepping motor for quartz watch |
| 11/10/1982 | EP0064363A1 Synchronous motor |
| 09/08/1982 | EP0059183A1 Stepping motor, particularly for electronic watch |
| 08/03/1982 | US4342992 Teleindicator for information boards |
| 08/03/1982 | US4342930 Step-by-step miniature motor for watch movement |
| 07/28/1982 | EP0015956B1 Device for driving a toothed wheel by a step-by-step motor |
| 07/20/1982 | US4340828 Single phase stepping motor |
| 07/08/1982 | WO1982002291A1 Diphased stepping motor |
| 06/22/1982 | US4336471 Stator assembly for stepping motor |
| 05/11/1982 | US4329601 Stepping motor |
| 04/13/1982 | US4324992 Electromagnetic motor |
| 03/18/1982 | WO1982000929A1 Stepping motor,particularly for electronic watch |
| 01/19/1982 | US4311934 Off set stator laminations for small rotary transducers |
| 10/28/1981 | EP0038744A1 Stepping motor, especially for an electronic watch |
| 05/26/1981 | US4270066 Miniature motor for an electronic timepiece including a stator having a non-magnetic reinforcing ring |
| 05/12/1981 | US4267472 Single phase stepping motor, particularly for clocks |
| 04/07/1981 | US4260915 Permanent magnet step motor with a shiftable rotor |
| 03/03/1981 | US4254492 Redundant clock system utilizing nonsynchronous oscillators |
| 10/16/1980 | WO1980002203A1 Stepping polyphased motor for a clockwork mechanism |
| 10/15/1980 | EP0016964A1 Electric clock, in particular a battery-operated quartz clock |
| 08/12/1980 | US4217509 Single phase stepping motor |
| 07/01/1980 | US4209970 Electronic timepiece |
| 06/25/1980 | EP0012460A1 Unitary stator for a stepping motor for watches |
| 06/03/1980 | US4206379 Permanent magnet rotor assembly for electro-mechanical transducer |
| 06/03/1980 | US4206377 Single phase stepping motor |
| 06/03/1980 | US4206376 Single phase stepping motor |
| 06/03/1980 | US4206375 Single phase stepping motor |
| 05/27/1980 | US4205244 Micro stepping motor |
| 05/06/1980 | US4201929 Single phase stepping motor |
| 03/11/1980 | US4192132 Quartz controlled analog watch |
| 02/19/1980 | CA1071879A1 Rocking motor for low cost quartz |
| 01/01/1980 | CA1068911A Electronic timepiece with printed circuit board |
| 12/04/1979 | US4177454 Digital display system |
| 11/15/1979 | WO1979000930A1 Device for driving a toothed wheel by a step-by-step bipolar motor |
| 10/30/1979 | CA1065379A1 Micro-miniature stepping motor |
| 09/18/1979 | US4167848 Driving device for an electric timepiece |
| 07/24/1979 | US4162418 Stepping motor for electronic clock |
| 07/24/1979 | US4162417 Electromechanical escapement |
| 06/12/1979 | US4157647 Hand reversing system for an electronic timepiece |
| 04/04/1979 | EP0001334A1 Transducer for an electronic timepiece |
| 03/13/1979 | US4144467 Pulse motor |
| 02/27/1979 | US4141210 Bipolar stepping motor |
| 12/12/1978 | US4128992 Rocking motor for low cost quartz watch |
| 09/19/1978 | US4115713 Rotor bias means for miniature watch motors or the like |
| 08/08/1978 | US4104859 Reversal preventing device of electric clock |
| 07/25/1978 | US4103191 Step motor |
| 06/27/1978 | US4097755 Construction of electromagnetic driving device |
| 06/13/1978 | US4095129 Rotor assembly for electro-mechanical transducer of electronic timepiece |
| 06/06/1978 | US4092820 Electronic timepiece |
| 05/02/1978 | US4086752 Electronic timepiece |
| 04/18/1978 | US4084403 Driving mechanism for a timepiece |
| 03/14/1978 | US4079279 Electrical micromotor |
| 02/21/1978 | US4075540 Stepping motor for timepiece |
| 02/21/1978 | US4075518 Micro-miniature stepping motor |
| 01/10/1978 | US4067101 Method of making a rotor for electronic wristwatch step motor |
| 01/03/1978 | US4066947 Stepping motor for electronic timepiece |
| 10/25/1977 | US4055785 Stepping motor for electronic timepiece |
| 09/13/1977 | US4048548 Stepping motor |
| 09/13/1977 | US4047376 Clock mechanism |
| 08/09/1977 | US4041336 Single phase stepper motor |
| 07/26/1977 | US4037402 Circuit arrangement for a quartz controlled electrical clock |
| 05/10/1977 | US4022013 Regulating device for electric timepieces |
| 05/03/1977 | US4021689 Stepping motor |
| 03/29/1977 | US4014166 Satellite controlled digital clock system |
| 03/22/1977 | US4012899 Micro motor for a timepiece |
| 02/01/1977 | US4006374 Electric micro motor for a timepiece |
| 01/25/1977 | US4004411 Counting mechanism for timepiece |
| 12/28/1976 | US3999369 Electromechanical watch movement |
| 11/09/1976 | US3991332 Stepping motor |
| 11/02/1976 | US3989967 Pulse motor |
| 10/12/1976 | US3984972 Transducer for quartz crystal timepiece |
| 09/14/1976 | US3980937 Fractional horsepower gear motor |
| 09/07/1976 | US3978651 Step motor for quartz crystal electronic timepiece |
| 08/24/1976 | US3975962 Click work for a watch movement |
| 08/03/1976 | US3972178 Electrically powered timepiece |
| 07/13/1976 | US3969642 Step motor for electronic timepiece |
| 04/06/1976 | US3949251 Stepping motor for a timepiece |
| 04/06/1976 | US3948036 Electronic timepiece |
| 03/16/1976 | US3943698 Rotor for electronic wristwatch step motor |