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Title:
Supporting device
United States Patent 3011587
Inventors:
Mallog, Peter H.
Publication Date:
12/05/1961
Export Citation:
Click for automatic bibliography generation
Assignee:
Mallog, Peter H.
Primary Class:
182/150
Other Classes:
182/187
International Classes:
E04G5/04
;
E04G5/00
View Patent Images:
Download PDF 3011587
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US Patent References:
2854292
Welding chair
2419145
Hoist
2076810
Safety cage for workmen
1918293
Rungless ladder
1782701
Derrick safety appliance