Title:
Oxygen mask having detachable face seal cushion
United States Patent 2931356


Inventors:
Hermann, Schwarz Karl
Application Number:
US75705058A
Publication Date:
04/05/1960
Filing Date:
08/25/1958
Assignee:
PURITAN COMPRESSED GAS CORP
Primary Class:
Other Classes:
D24/110.4
International Classes:
A61M16/06; A62B18/02
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US Patent References:
Foreign References:
CH194585A1937-12-15