Apparatus for softening shoe stiffeners
United States Patent 1857218

Inventors:
Sawyer, Harold L.
Cosgrove, John W.
Publication Date:
05/10/1932
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Assignee:
UNITED SHOE MACHINERY CORP
Primary Class:
222/340
Other Classes:
222/566, 118/410, 222/457, 222/450
International Classes:
A43D95/12; A43D95/00