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Class Information
Number: 200/DIG.34
Name: Electricity: circuit makers and breakers > Recording and reproducing

Patents under this class:

Patent Number Title Of Patent Date Issued
5187630 Multi-parameter variable scale rotary switch Feb. 16, 1993
4675905 Multiple input silent audio switch Jun. 23, 1987
4656321 Three position switch and switching device for a magnetic-tape-cassette apparatus Apr. 7, 1987
4506122 Selection switch Mar. 19, 1985
4428005 Mode selecting device for a video signal reproducing apparatus Jan. 24, 1984
4409634 Tape recorder Oct. 11, 1983
4107489 Switch mechanism for simple phonograph Aug. 15, 1978

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