Title:
Manipulating mechanism
United States Patent 1928811

Inventors:
Burns, Frank J.
Publication Date:
10/03/1933
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Assignee:
Burns, Frank J.
Primary Class:
72/251
Other Classes:
414/746.300, 144/136.700, 414/757, 83/704, 72/252
International Classes:
B21B39/14; B21B39/20; B21B17/00; B21B23/00; B21B39/12; B21B39/02