Title:
Breathing apparatus
United States Patent 2348074
Inventors:
Lambertsen, Christian J.
Publication Date:
05/02/1944
Export Citation:
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Assignee:
Lambertsen, Christian J.
Primary Class:
128/205.17
Other Classes:
128/205.25, 128/205.28
International Classes:
A62B7/10; B63C11/24; A62B7/10; B63C11/02
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