Earphone socket and noise shield
United States Patent 2468721
US Patent References:
Receiver-shield
- - 1396771

Earpiece
- - 2204183

Earphone socket
- - 2403418

Receiver ear piece
- - 2407731

Earphone socket structure
- - 2423355


Inventors:
John, Volkmann
Publication Date:
04/26/1949
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Assignee:
John, Volkmann
Primary Class:
181/129
Other Classes:
D14/249, 381/372, 2/209
International Classes:
H04R1/10