System of transmission of electric signals
United States Patent 2236134

Inventors:
Marie, Gloess Paul Francois
Publication Date:
03/25/1941
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Assignee:
INT STANDARD ELECTRIC CORP
Primary Class:
333/18
Other Classes:
333/16, 348/614, 333/12, 348/611, 333/28R, 327/551
International Classes:
H03H7/32; H04B1/12; H04B3/23; H04B7/12; H03H7/30; H04B7/02