Title:
Convertible stepladder
Document Type and Number:
United States Patent 2470053
Inventors:
Salisbury, Raymond R.
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Publication Date:
05/10/1949
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Referenced by:
Export Citation:
Assignee:
Salisbury, Raymond R.
Primary Class:
Other Classes:
182/120, 182/129
International Classes:
E06C1/32; E06C7/14; E06C1/00; E06C7/00
US Patent References:
Foreign References:
| GB409095A |