| Patents for H01H 27 - Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings (1,960) |
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| 03/16/1993 | US5193665 Electric plug with disabling means |
| 03/16/1993 | US5193664 Universal access switch |
| 03/02/1993 | US5190148 Marine key switch |
| 02/17/1993 | CN2127204Y Power source switch key base of motorcycle |
| 02/09/1993 | US5184490 Key switch assembly |
| 01/26/1993 | US5181406 Locking device consisting of key and locking cylinder |
| 11/25/1992 | EP0514772A1 Key device |
| 10/08/1992 | DE4111150A1 Two-piece spring-loaded interlocking electrical safety switch - comprises two separate housings with interlocking covers that engage together and rotate before making contact |
| 09/23/1992 | CN2116959U Jogging clutch |
| 09/15/1992 | US5146772 Vehicle door lock device |
| 09/02/1992 | EP0501188A1 Key-operated switch |
| 09/02/1992 | CN2114886U Lock controlled double-linked switch |
| 08/12/1992 | CN2112882U Safety socket with lock |
| 08/05/1992 | EP0497661A1 Anti theft switch for motor vehicles |
| 07/15/1992 | CN2110296U Lock safety socket |
| 07/08/1992 | CN2109628U End face spring electric switch lock |
| 06/23/1992 | CA1303868C Contact system for transferring electrical signals between lock and key in a cylinder lock |
| 06/17/1992 | EP0490141A2 Mounting of an electrical switch |
| 06/09/1992 | US5120236 Appliance locking device |
| 05/07/1992 | DE4034609A1 Multifunction key switch for stimulation current unit for medical bathing - ensures that after switch on and acceleration of intensity no acceleration of switch position is possible at board using shielding cover |
| 05/05/1992 | US5111007 Switch lock with lighted position indicator |
| 04/29/1992 | EP0483048A2 Internal key-in-ignition-warning/ignition switch |
| 03/24/1992 | US5099223 Safety device, in particular a safety gate, which can be activated by a moving body |
| 03/10/1992 | US5095181 Three-position safety rocker |
| 03/05/1992 | DE4039652C1 Detachable safety-interlock for electrical switch - has key guides chamfered to facilitate final engagement with coded cam |
| 03/04/1992 | CN2098086U Locking switch for corrodor lamp |
| 03/03/1992 | US5092148 Pry-proof computerized mechanical lock |
| 02/11/1992 | CA1295631C Key switch |
| 02/04/1992 | US5085043 Electro-mechanical interlock and module system for lawn mower or other electrical device |
| 01/22/1992 | CN2094113U Water-flame-proof key-operated mains contactor |
| 01/15/1992 | EP0466306A1 Lawn mower |
| 01/08/1992 | EP0465459A2 Miniature laser for use in human and veterinary medicine |
| 12/25/1991 | CN1057309A Door lock energy saving device |
| 12/03/1991 | US5070219 Electrical key locked switch |
| 11/27/1991 | EP0458166A2 Contact device for a switch |
| 11/19/1991 | US5066941 Internal key-in-ignition-warning/ignition switch |
| 11/13/1991 | EP0456161A2 Switch lock, in particular for data processing apparatus |
| 11/05/1991 | US5062668 Safety lock for the doors of electrical applicances |
| 10/15/1991 | US5057824 Electronic apparatus with on-switch to conserve battery before closing switch |
| 10/01/1991 | CA1289996C Electrical switch with rocker actuator having removable locking key |
| 09/11/1991 | CN2084493U Program operation lock for electric apparatus |
| 09/10/1991 | US5047598 Safety rocker with improved actuator mounting |
| 09/03/1991 | US5045657 Actuating device for the mechanical positive actuation of a pressure-response switch |
| 09/03/1991 | US5045648 Locking rocker switch |
| 08/06/1991 | US5038007 Switch |
| 08/06/1991 | US5038004 Miniature switch |
| 07/31/1991 | CN2082021U Switch with three-safety lock used for power source of alarm |
| 07/23/1991 | US5034576 Console switch |
| 07/18/1991 | CA2031913A1 Sheet detector |
| 07/16/1991 | US5031896 Sheet detector |
| 07/11/1991 | WO1991010248A1 Switch with driving head |
| 07/11/1991 | WO1991010247A1 Safety switches for safety covers or the like |
| 07/11/1991 | DE3943375A1 Schalter mit antriebskopf Switch with power head |
| 07/10/1991 | CN2080703U Multiple-fuel-position, circuit gang switch for lighting |
| 05/29/1991 | DE4037566A1 Safety interlock operated by key-actuated rotary cam - is freed for rotation by key deflecting both limbs of hairpin-shaped steel wire spring |
| 05/29/1991 | DE4037564A1 Safety switch operated by key-actuated rotary cam - has keyhole entrance guarded by angled faces of two plungers biased by springs upward and downward |
| 05/29/1991 | DE3936509A1 Key switch for medicinal bath stimulation current generator |
| 05/21/1991 | US5017145 Matrix switching device and method of manufacturing the same |
| 05/16/1991 | WO1991006967A1 Multifunctional key-operated switch for a stimulation current generator for balneotherapy |
| 05/02/1991 | DE4033992A1 Movable actuator with key for door safety interlock - has two alternative configurations allowing for rotation of key through right angle about its longitudinal axis |
| 04/25/1991 | DE3935328A1 Key-actuated switch - is operated by pivoted arm moved when key is turned |
| 04/17/1991 | EP0423027A1 Security device activated by moving body, in particular security gate |
| 04/11/1991 | DE4031348A1 Security switch for protective doors - has switch with apertures fully rotatable about switch axis |
| 03/27/1991 | CN2073914U Lock for door |
| 02/21/1991 | DE3943377C1 Locking closure for electrical switching appts. housing - has arresting nose on cover engaging recess in housing and locking part arresting snap coupling |
| 02/14/1991 | DE4029344A1 Safety switch unit - has interlock mechanism to prevent accidental operation |
| 02/13/1991 | EP0412374A2 Command-switch |
| 01/24/1991 | DE3923663A1 Safety switch for machine - ahs timed interval before interlock is recessed to allow access |
| 01/23/1991 | EP0235292B1 Pin board matrix |
| 12/25/1990 | US4980524 Key switch operable by a cylinder lock |
| 12/20/1990 | DE3919458A1 Door locking mechanism for laundry dryers - with block fastened on door, spring-tensioned rotary component and pawl |
| 12/06/1990 | DE4015797A1 Locking device for machine safety guard - uses sliding and rotatable switch shaft cooperating with magnet and switch device |
| 12/04/1990 | US4975549 Multiple terminal switch apparatus |
| 11/27/1990 | US4972692 Key-operated ignition device |
| 10/31/1990 | EP0394558A2 Electrical connector having a grounding pin |
| 10/31/1990 | EP0394371A1 Wallet incorporating credit card alarm system |
| 10/17/1990 | EP0392200A1 Safety door latch for electrical appliances |
| 10/16/1990 | US4963706 Safety switch assemblies |
| 08/28/1990 | CA1273422A1 Interruptible current outlet mounted on a busbar power pole |
| 08/16/1990 | EP0382345A2 Unitarily molded electrical connector housing with separable key |
| 08/07/1990 | US4947009 Conscious effort safety switch |
| 07/26/1990 | WO1990008396A1 Safety switch assemblies |
| 07/04/1990 | CN2059020U Multi-purpose electric testing converter |
| 06/27/1990 | CN2058783U Mechanical safety protector for electric motor |
| 06/05/1990 | US4931600 Cylinder key switch |
| 05/22/1990 | US4927787 Unitarily molded electrical connector housing with separable key |
| 05/15/1990 | US4924686 Contact device for transmitting electrical signals between a lock and key in a cylinder lock |
| 05/09/1990 | EP0367026A2 Safety door-locking device |
| 04/18/1990 | CN2056282U Enclosed type electric appliance protecting lock for mains plug |
| 03/27/1990 | US4912290 Electric contact structure for a locking cylinder |
| 03/21/1990 | CN1007298B Electric switch |
| 02/27/1990 | US4904829 Actuator-controlled keylock switch |
| 02/27/1990 | US4904194 Polarized grounding pin |
| 02/21/1990 | CN2053377U Civel electric switch |
| 02/07/1990 | EP0353343A2 Switch lock with lighted position indicator |
| 02/06/1990 | CA1265352A1 Electromechanical switch actuator having high security key actuator |
| 01/02/1990 | US4891477 Key switch |
| 01/02/1990 | US4890467 Switch lock |
| 12/28/1989 | DE3917575A1 Elektrischer programmwahlschalter mit sicherheitsschluss Electrical program selector switch with safety circuit |
| 12/26/1989 | US4890006 Rotary lock swtich for switching and resetting a computer |