Title:
Combination ladder bracket
United States Patent 2140828

Inventors:
Fred, Carle
Publication Date:
12/20/1938
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Assignee:
Fred, Carle
Primary Class:
248/238
Other Classes:
248/214, 182/122
International Classes:
E06C1/36; E06C7/16; E06C1/00; E06C7/00