Foldable umbrella frame
United States Patent 2157670

Inventors:
Sonoji, Ono
Publication Date:
05/09/1939
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Assignee:
Sonoji, Ono
Primary Class:
135/25.300
Other Classes:
403/53, 403/102, 135/31, 135/25.340, 135/26, 403/62
International Classes:
A45B19/00