Title:
Breathing apparatus
United States Patent 3402711
US Patent References:
/2313149.html
- - 2313149
Device for supplying a diver with air
- - 2898909
Respirators, particularly for submarine use
- - 2944544
/2313149.html
- - 2313149
Device for supplying a diver with air
- - 2898909
Respirators, particularly for submarine use
- - 2944544
Inventors:
Emerson, John H.
Publication Date:
09/24/1968
View Patent Images:
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
Primary Class:
Other Classes:
137/506, 137/494
International Classes:
B63C11/22; B63C11/02
Foreign References:
| GB640316A |