Portable scaffold unit
United States Patent 2665950
US Patent References:
/0153270.html
- - 0153270

/0362768.html
- - 0362768

/0524270.html
- - 0524270

/0582238.html
- - 0582238

/0840636.html
- - 0840636


Inventors:
Johnson, Wallace J. S.
Publication Date:
01/12/1954
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Assignee:
Johnson, Wallace J. S.
Primary Class:
52/637
Other Classes:
403/190, 24/600.700, 403/49, 182/115
International Classes:
E04G7/30; E04G7/00
US Patent References:
1051428
1490548Sectional scaffold
1880767Scaffold
1980862Wrench
2181784Scaffold
2303428Metal scaffolding
2308831Structural member
2419727Ladder platform
Foreign References:
GB489585A