Explosion hatch
United States Patent 2681165
US Patent References:
/1389495.html
- - 1389495

Collar and cover for tank gauge holes
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Hinge
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Electric switch
- - 1811294

Ash receiver
- - 1975412


Inventors:
Saunders, Kornhauser
Jatzek, Henry A.
Publication Date:
06/15/1954
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Assignee:
STANDARD OIL CO
Primary Class:
220/813
Other Classes:
220/828
International Classes:
C10C3/04; C10C3/00
US Patent References:
1994770Safety valve for tanks
2421838Closure for exhaust pipes
2519809Printing plate coating machine
2555280Surge relief
Foreign References:
IT331315B