Title:
Sound head set
United States Patent 3169600
US Patent References:
/0652442.html
- - 0652442
/2209164.html
- - 2209164
Ear-tip for stethoscope type headset
- - 2803308
/3000463.html
- - 3000463
/3130810.html
- - 3130810
/0652442.html
- - 0652442
/2209164.html
- - 2209164
Ear-tip for stethoscope type headset
- - 2803308
/3000463.html
- - 3000463
/3130810.html
- - 3130810
Inventors:
Thomas, James E.
Publication Date:
02/16/1965
View Patent Images:
Export Citation:
Assignee:
Thomas, James E.
Primary Class:
International Classes:
A61B7/02; H04R1/10; A61B7/00
Foreign References:
| GB278513A |