Title:
Telescoping stage
United States Patent 1917011


Inventors:
Bird, Fred A.
Application Number:
US54885331A
Publication Date:
07/04/1933
Filing Date:
07/06/1931
Assignee:
Bird, Fred A.
Primary Class:
Other Classes:
52/115, 91/169, 182/14, 182/148, 280/43.2
International Classes:
B66F11/04
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