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Class Information
Number: 200/42.01
Name: Electricity: circuit makers and breakers > Plural switches control single circuit
Description: Devices wherein a single circuit is closed or opened by placing a plurality of circuit controlling switches in a specified relationship to complete or open the circuit.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7224558 |
Method and apparatus for electromechanically interrupting and reconnecting circuits |
May. 29, 2007 |
| 6952855 |
Automatic electric toothbrush |
Oct. 11, 2005 |
| 6895625 |
Automatic electric toothbrush |
May. 24, 2005 |
| 6823134 |
Automatic reverse motor controller |
Nov. 23, 2004 |
| 6792640 |
Automatic electric toothbrush |
Sep. 21, 2004 |
| 6717080 |
Power tool trigger assembly |
Apr. 6, 2004 |
| 6674025 |
Motivational apparatus for controlling use of electronic devices and method of use |
Jan. 6, 2004 |
| 6548776 |
Safety device for on/off switch of an electric tool |
Apr. 15, 2003 |
| 6400242 |
High current auxiliary switch for a circuit breaker |
Jun. 4, 2002 |
| 6392169 |
Two hand control of working apparatuses |
May. 21, 2002 |
| 5219066 |
Wall mounted alarm switch with adjustable height actuator |
Jun. 15, 1993 |
| 4988840 |
Control switch |
Jan. 29, 1991 |
| 4603238 |
Fast indexing encoder apparatus |
Jul. 29, 1986 |
| 4566033 |
Television viewing time regulator |
Jan. 21, 1986 |
| 4253095 |
Alarm apparatus for detecting disturbance or other change of condition |
Feb. 24, 1981 |
| 4155420 |
Theft proof ignition system |
May. 22, 1979 |
| 4112267 |
Coded switching device |
Sep. 5, 1978 |
| 4107485 |
Device for completing an electric circuit or the like for a lock or the like |
Aug. 15, 1978 |
| 4008382 |
Safety electrical plug |
Feb. 15, 1977 |
| 4000409 |
Combination switch lock for a motor vehicle ignition system |
Dec. 28, 1976 |
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