Plug and jack box switching unit
United States Patent 2438515
US Patent References:
/0238217.html
- - 0238217

/0719095.html
- - 0719095

/1102164.html
- - 1102164


Inventors:
Mohler, Marvin F.
Publication Date:
03/30/1948
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Assignee:
Mohler, Marvin F.
Primary Class:
379/325
Other Classes:
439/345, 242/378.200, 439/13, 242/125, 174/69
International Classes:
H04M5/02; H04M5/00