Push button device
United States Patent 3210484

Inventors:
Dorsey, John W.
Publication Date:
10/05/1965
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Assignee:
Automatic, Elect Lab
Primary Class:
200/5R
Other Classes:
379/368, 341/34, 400/479
International Classes:
H04M1/23
US Patent References:
3080457Multiple switching device for automatic telephone systems
3120583Multiple switch device for selectively interconnecting multiple electrical conductors
Foreign References:
FR1282035A
SE164786A