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Folding umbrella
United States Patent 1474821
Inventors:
Hartzell, Morris H.
Publication Date:
11/20/1923
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Download PDF 1474821
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Assignee:
Samuel Sr., Fretz S.
Primary Class:
135/25.310
Other Classes:
135/29
International Classes:
A45B19/10
;
A45B19/00