Title:
Mandible cushion for oxygen masks
United States Patent 2521084
US Patent References:
Oxygen-delivering parachute escape outfit
- - 2360193

Mouth-protective bit
- - 2483157


Inventors:
Oberto, William T.
Publication Date:
09/05/1950
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Assignee:
Oberto, William T.
Primary Class:
128/206.290
International Classes:
A61M16/06; A61M16/10; A61M16/00; A61M16/04; A62B9/06; A62B9/00