Title:
Head straps for respirator
United States Patent 3082767


Inventors:
Matheson, James N.
Application Number:
US10802661A
Publication Date:
03/26/1963
Filing Date:
05/05/1961
Assignee:
WELSH MFG COMPANY
Primary Class:
Other Classes:
24/605
International Classes:
A62B18/08
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US Patent References:
Foreign References:
FR425764A1911-06-20
FR825960A1938-03-18