Title:
Back-rest construction
United States Patent 1734179


Inventors:
Olson, Percy W.
Application Number:
US16918027A
Publication Date:
11/05/1929
Filing Date:
02/18/1927
Assignee:
William, Ferris S.
Primary Class:
Other Classes:
297/353, 297/376, 297/383
International Classes:
A47B39/08; A47C7/40
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