UMBRELLA CONSTRUCTION
United States Patent 3534752

Inventors:
Vanzini, Sergio
Publication Date:
10/20/1970
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Assignee:
Sergio, Vanzini
Primary Class:
135/22
Other Classes:
135/25.410
International Classes:
A45B3/04; A45B19/00; A45B3/00; A45B25/16; A45B19/00; A45B25/14




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