Title:
LADDERS
Document Type and Number:
United States Patent 3464521

Inventors:
Popoli, Vincent J.
Publication Date:
09/02/1969
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Assignee:
Vincent, Popoli J.
Primary Class:
182/207
Other Classes:
182/219
International Classes:
E06C1/12; E06C1/00; E06C7/08; E06C1/00
US Patent References:
0983213
2144293Ladder
2594070Ladder
3232378Ladder rungs


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