Title:
Lifting apparatus
United States Patent 1682083


Inventors:
Johnston, Frank B.
Application Number:
US15927327A
Publication Date:
08/28/1928
Filing Date:
01/06/1927
Assignee:
AMERICAN SAFETY DEVICE COMPANY
Primary Class:
Other Classes:
182/147, 187/239, 187/263, 226/194, 254/310, 254/371
International Classes:
B66D1/74; B66D3/12; E04G3/32
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