Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1996-11-08
1998-09-08
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182225, B27B 2100
Patent
active
058032053
ABSTRACT:
A folding sawhorse including a rigid planar center panel and a pair of hinged rigid planar end panels which can be folded flat against the rigid planar center panel when the sawhorse is not in use and swung into position and locked in place when the sawhorse is in use.
REFERENCES:
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patent: 3976163 (1976-08-01), Watkinson
patent: 4759520 (1988-07-01), Levine
patent: 4763757 (1988-08-01), Cheney
patent: 5010978 (1991-04-01), Jimmerson
patent: 5277388 (1994-01-01), Denaro
patent: 5351882 (1994-10-01), Krautsack
patent: 5443168 (1995-08-01), Dyment
patent: 5582267 (1996-12-01), Bockoven
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