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Title:
Universal folding ladder
Document Type and Number:
United States Patent 1942210
Inventors:
Walter, Harting
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Sponsored by:
Flash of Genius
Publication Date:
01/02/1934
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Assignee:
Walter, Harting
Primary Class:
182/22
Other Classes:
403/174, 182/27, 403/4, 403/167, 182/178.200, 403/379.300
International Classes:
E06C1/32
;
E06C1/39
;
E06C1/00
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