Title:
Breathing apparatus
United States Patent 2948292


Inventors:
William, Fitt Peter
Application Number:
US66488957A
Publication Date:
08/09/1960
Filing Date:
06/07/1957
Assignee:
NORMALAIR LTD
Primary Class:
Other Classes:
128/204.29, 137/489.5
International Classes:
A62B9/02
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