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United States Patent 1705151

Inventors:
Card, Earl J.
Publication Date:
03/12/1929
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Assignee:
ART METAL CONSTRUCTION CO
Primary Class:
312/194
Other Classes:
312/294, 312/307, 312/306, 312/208.100, 312/313, 174/70R, 312/290
International Classes:
A47B17/00; A47B21/00