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Title:
Ladder attachment
United States Patent 2174891
Inventors:
Alfred, Maran
Publication Date:
10/03/1939
View Patent Images:
Download PDF 2174891
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Assignee:
Alfred, Maran
Primary Class:
182/121
Other Classes:
193/35A, 248/210
International Classes:
E06C7/16
;
E06C7/00