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Safety ladder basket
United States Patent 2597756
US Patent References:
Concrete insert
- - 1429686
Ladder jack
- - 2485685
Inventors:
Sitek, Louis R.
Publication Date:
05/20/1952
View Patent Images:
Download PDF 2597756
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Assignee:
Sitek, Louis R.
Primary Class:
248/210
Other Classes:
248/238
International Classes:
E06C7/14
;
E06C7/00
Foreign References:
FR779845A