Pressure regulator structure for pressure-type gas masks
United States Patent 2684066
US Patent References:
Air mask
- - 2007440

Gas mask
- - 2051023


Inventors:
Glidden, Galen M.
Publication Date:
07/20/1954
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Assignee:
ACME PROT EQUIPMENT COMPANY
Primary Class:
128/205.240
Other Classes:
128/201.150
International Classes:
A62B9/02; A62B9/00