Title:
Positive pressure breathing apparatus
United States Patent 3138152


Inventors:
Wilson, James S.
Application Number:
US20729162A
Publication Date:
06/23/1964
Filing Date:
07/03/1962
Assignee:
MINE SAFETY APPLIANCES CO
Primary Class:
Other Classes:
251/65
International Classes:
A61M16/00
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US Patent References:
3068856Fluid control device1962-12-18
2881757Respirator control systems1959-04-14
2736331Resuscitator1956-02-28
2418034Respiration apparatus1947-03-25
2121311Respiration apparatus1938-06-21