Testing vat elevator
United States Patent 2494224
US Patent References:
/1012203.html
- - 1012203

Ledger safe and the like
- - 2284531


Inventors:
Benson, Robert E.
Publication Date:
01/10/1950
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Assignee:
Benson, Robert E.
Primary Class:
134/115R
Other Classes:
254/126, 134/164, 134/141, 187/269, 4/566.100
International Classes:
B66F11/00