Safety tank closure
United States Patent 2529329
US Patent References:
Thief-hole cover
- - 1739911
Safety valve for gasoline tanks and the like
- - 1893942
Receptacle closure
- - 2089251
Breather valve and hatch for tanks
- - 2169410
Thief-hole cover
- - 1739911
Safety valve for gasoline tanks and the like
- - 1893942
Receptacle closure
- - 2089251
Breather valve and hatch for tanks
- - 2169410
Inventors:
Frees, Joseph DE. H.
Publication Date:
11/07/1950
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Assignee:
Frees, Joseph DE. H.
Primary Class:
Other Classes:
105/377.070, 292/256
International Classes:
F16J13/20; F16J13/00