Convertible mast construction
United States Patent 2065715

Inventors:
Leon, Peter F.
Publication Date:
12/29/1936
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Assignee:
Leon, Peter F.
Primary Class:
114/90
Other Classes:
114/187, 110/184, 454/78, 114/211, 52/302.500, 52/116
International Classes:
B63B15/00