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Class Information
Number: 200/DIG.47
Name: Electricity: circuit makers and breakers > Light guides for switch indicators (prisms, reflectors, cables, etc.)

Patents under this class:

Patent Number Title Of Patent Date Issued
8026827 Virtual push button switch Sep. 27, 2011
5743381 Apparatus for illuminating keyboards Apr. 28, 1998
5650766 Wearable transmitter with optical tamper detection Jul. 22, 1997
5584563 Appliance control assembly Dec. 17, 1996
5512718 Keypad having a reflective contact Apr. 30, 1996
5408060 Illuminated pushbutton keyboard Apr. 18, 1995
5336859 Illuminated switch Aug. 9, 1994
5280145 Switch actuating mechanism Jan. 18, 1994
5164723 Configurable keyboard Nov. 17, 1992
5128842 Uniform illumination plate Jul. 7, 1992
5012054 Closely spaced back-lit push button array Apr. 30, 1991
4954668 Apparatus for resetting appliance Sep. 4, 1990
4670633 Keyboard assembly with lighting Jun. 2, 1987
4489227 Back lighted, full travel push button membrane keyboard Dec. 18, 1984
4454399 Change-over position display device for use in a switch Jun. 12, 1984
4442425 Passive fiber optic keyboard Apr. 10, 1984
4254316 Electrical switching apparatus Mar. 3, 1981
4218775 Pushbutton radio tuner with illuminated pushbutton display Aug. 19, 1980

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