Title:
Collapsible and adjustable trestles
Document Type and Number:
United States Patent 3139950

Inventors:
Friedrich, Bormann
Publication Date:
07/07/1964
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Assignee:
Friedrich, Bormann
Primary Class:
182/182.500
International Classes:
A63B5/12; B25H1/06; E04G1/32; A63B5/00; B25H1/00; E04G1/00
US Patent References:
0616762
0933650
1107098
2794496Knock-down support means
2832647Trestle for scaffolding and the like
2967585Adjustable scaffold support


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