Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1999-07-13
2000-02-01
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
1821865, B27B 2700
Patent
active
060191937
ABSTRACT:
A sawhorse system that constructed from readily available, rigid plastic tubing and rigid plastic tubing connecters including L-shaped elbows and T-shaped connectors to provide a lightweight sturdy sawhorse that is not subject to damage from the elements and which is collapsible for easy storage.
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patent: 5377779 (1995-01-01), Slapnicka
patent: 5467842 (1995-11-01), Meloy
patent: 5647455 (1997-07-01), Russell
patent: 5704450 (1998-01-01), Lunceford
patent: 5839540 (1998-11-01), Russell
Breaux Joseph N.
Chin-Shue Alvin
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