Scaffold
United States Patent 2549638
US Patent References:
/0499826.html
- - 0499826

/1028362.html
- - 1028362

/1111707.html
- - 1111707

Nonskid roof jack
- - 1478682

Roof bracket
- - 1492483


Inventors:
Rogghe, John C.
Publication Date:
04/17/1951
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Assignee:
Rogghe, John C.
Primary Class:
248/237
Other Classes:
182/122
International Classes:
E04G3/26; E04G3/24
US Patent References:
1827491Bracket for roofing scaffolds
2299323Combination building jack
Foreign References:
FR818553A