| Patents for G04C 23 - Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (976) |
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| 08/04/1993 | CN2139711Y Electronic timer for electric rice cooker |
| 07/21/1993 | CN2138806Y Computer program controller with synchronous pointer and digital display |
| 07/06/1993 | US5226021 Train simulation alarm clock apparatus |
| 06/30/1993 | CN2137372Y Multi-functional electronic timer |
| 06/15/1993 | US5220540 Data processing apparatus with schedule creation, prioritization, display and control functions |
| 05/26/1993 | CN2134676Y Multifunctional applied timer |
| 05/19/1993 | CN2133864Y Mechano-electronic time-control power supply |
| 05/12/1993 | CN2133010Y Clock with electric appliance timer |
| 05/05/1993 | CN2132202Y Arbitrary cyclic clock-control timer |
| 05/05/1993 | CN2132201Y Electronic clocks and watches timer set |
| 04/28/1993 | CN2131127Y Electric timer |
| 04/13/1993 | US5202859 Time informing clock |
| 03/31/1993 | CN2129017Y Timing switch power supply |
| 03/24/1993 | CN2128749Y Clock controlled switch timer for household electric appliances |
| 03/17/1993 | CN1070056A Practical plan for general mircrocomputer timed warning indication |
| 03/10/1993 | CN2128007Y Multi-function electronic timing controller |
| 02/10/1993 | CN2126924Y Quartz clock controlled switch |
| 12/30/1992 | CN2126435U Multifunctional socket with power supply controlled and time-fixed by digital displaying electronic clock |
| 12/02/1992 | EP0516115A2 Electronic timer |
| 12/01/1992 | US5168476 Alarm clock |
| 11/19/1992 | EP0513633A2 Alarm clock |
| 11/11/1992 | CN2121709U Controller for clock timing |
| 10/21/1992 | CN2119678U Time controller |
| 10/21/1992 | CN2119677U Lightning arresting timing controller for electronic device |
| 10/07/1992 | CN2118321U Mechanical alarm clock with timed switch |
| 09/30/1992 | CN2117625U Electronic digital timer able to control electric power switch |
| 09/23/1992 | CN2116924U Time adjusting control switch |
| 09/16/1992 | CN2116232U Self-control timer of low voltage electrical appliance |
| 09/09/1992 | CN2115549U Mechanical clock timing device |
| 09/02/1992 | EP0501282A1 Selective pager receiver |
| 09/02/1992 | CN2114847U Probe type clock controlled multi-function timer |
| 08/26/1992 | CN2114186U Clock timing on-off means |
| 08/19/1992 | CN2113509U Multifunctional alarm clock |
| 08/12/1992 | CN2112854U Clock type self-controller |
| 08/12/1992 | CN1063562A Automatic timing acoustic warner |
| 08/05/1992 | CN2112169U Pointer multifunctional time program self-controlling clock |
| 08/05/1992 | CN2112168U Vibration sleeper's alarm |
| 08/05/1992 | CN2112167U Bell-controlling timer |
| 07/22/1992 | CN2110891U Timepiece dial with timing switch |
| 07/22/1992 | CN2110890U Automatic power supplying timer for household electric rice pot |
| 07/15/1992 | CN2110238U Automatic calendar |
| 07/08/1992 | CN2109592U Timed power socket for electronic clock |
| 07/01/1992 | CN2108950U Mechanical alarm clock with timed control electric switch |
| 06/24/1992 | CN2108324U Automatic timing switching watch |
| 06/24/1992 | CN2108323U Electronic alarm clock capable of timing switching circuit |
| 06/17/1992 | CN2107670U Multi-purpose electronic time controller |
| 06/17/1992 | CN2107669U Electric cooker timing boiling device |
| 05/20/1992 | CN2105091U Multipurpose programable quartz clock core |
| 05/20/1992 | CN2105090U Timer switch of alarm clock |
| 05/06/1992 | CN2103829U Clock-controlled timer for electric rice pot |
| 05/06/1992 | CN2103828U Simple timer |
| 04/22/1992 | CN2102532U Timed automatic power source of electric cooker |
| 04/22/1992 | CN2102531U Multifunctional clock |
| 04/15/1992 | CN2101899U Time chronograph for automatic measuring of digit display type equipment |
| 04/08/1992 | CN2101270U Point type clock control multifunction timer |
| 03/11/1992 | EP0473748A1 Time switch clock. |
| 02/19/1992 | CN2096773U Timly electric switch device |
| 02/19/1992 | CN2096298U Automatic controlling device for water and electricity of electric rice cooker |
| 02/05/1992 | CN1058476A Timing radio ramote-controlled waking-up device |
| 01/22/1992 | CN2094077U Remote-control soundless alarm clock |
| 01/08/1992 | EP0464484A2 Switch lever for electromechanical timerswitches |
| 12/11/1991 | CN2090546U Quartzcrystal swap-time controller |
| 11/27/1991 | CN2089641U Controller for electricity using time |
| 11/20/1991 | CN2089187U Timing controller for power supply |
| 11/06/1991 | CN2088267U Time bell-ring and automatic broadcasting device |
| 11/06/1991 | CN2088266U Multi-functional programmable controlled quartz clock |
| 11/06/1991 | CN2088265U Full automatic multi-contact demand time signal clock |
| 11/06/1991 | CN2088264U Circuit timing switch |
| 10/16/1991 | CN2086914U Intermittent clock (watch) controller |
| 10/03/1991 | WO1991014976A1 Time switch clock |
| 09/25/1991 | CN2085530U Auto-broadcast and -time-signaling controller controlled by clock |
| 09/18/1991 | CN2085073U Clock controlled double-timing controller for domestic electrical appliances |
| 09/18/1991 | CN2085072U High-precision simple controller for timing switch |
| 09/11/1991 | CN2084627U Controller for operation state |
| 09/05/1991 | DE4104630A1 Electromechanical timer with circular programming switching elements - has rotating wheel drive with planet wheel keeping time and actuating electrical switch via pivoted lever |
| 09/04/1991 | CN2084208U Multifunctional socket |
| 08/28/1991 | CN2083763U 数字显示定时器 Digital Display Timer |
| 07/24/1991 | CN2081546U Multi-functional miniature sequential controller |
| 07/03/1991 | CN2080187U 感应式闹钟 Inductive alarm |
| 06/26/1991 | CN2079767U Time controlled switch |
| 06/26/1991 | CN2079766U Programmable multi-circuit time controller for quartz clock |
| 06/19/1991 | CN2079316U Ac/dc two-purpose clock with automatic belling |
| 05/14/1991 | US5016231 Apparatus for electronically correcting an electronic timepiece |
| 05/08/1991 | CN2076689U Alarm clock type time controller |
| 05/01/1991 | CN2076252U Timing on-off switching watch |
| 04/24/1991 | CN2075793U Timed clock for electric appliance |
| 04/17/1991 | CN2075358U Timer switchzhof stick type clock control |
| 04/03/1991 | CN2074471U Intelligent programable timing controller |
| 03/27/1991 | CN1012222B Dot-line dual-diplaying program-controlled time signal clock |
| 03/26/1991 | US5003519 Alarm arrangement for a timepiece |
| 03/06/1991 | CN2072707U General ships and vehicles clock automatic record alarm supplementary device |
| 02/27/1991 | CN2072241U Quartz clock with double alarm |
| 02/20/1991 | CN2071804U Alarm clock with time controller of electric appliance |
| 02/13/1991 | CN2071353U Micro computer timed speed adjuster |
| 01/30/1991 | EP0409935A1 Electromechanical timer switch. |
| 01/30/1991 | CN2070465U Timer for mechanical clock |
| 01/23/1991 | CN2070010U Multi-functional timing clock |
| 01/16/1991 | CN2069578U Multi-functional wide-range programmable time-controlling apparatus |
| 01/09/1991 | CN2069129U Multi-purpose clock with attached means operating electric appliance |
| 01/02/1991 | CN2068695U Multifunction bell-controlled automatic switch for electrical appliance |