Earphone socket
United States Patent 2468267
US Patent References:
Headset
- - 1835792

Headphone
- - 2353070

Earphone socket
- - 2408490


Inventors:
Martin, Mondl Adolph
Publication Date:
04/26/1949
View Patent Images:
Download PDF 2468267 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Martin, Mondl Adolph
Primary Class:
381/376
Other Classes:
381/372, 2/209
International Classes:
H04R1/10
Foreign References:
CH174219A
GB460759A