Foldable ladder
United States Patent 2567302
US Patent References:
/0040500.html
- - 0040500

/0046042.html
- - 0046042

/0196679.html
- - 0196679

/0544520.html
- - 0544520


Inventors:
Karel, Sip
Publication Date:
09/11/1951
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Assignee:
Karel, Sip
Primary Class:
182/104
Other Classes:
211/202, 182/157
International Classes:
E06C1/54; E06C1/00
Foreign References:
AT41130B