Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1980-05-22
1982-03-16
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182181, 182225, 248436, 248459, 269296, 269254R, B27B 2102
Patent
active
043196632
ABSTRACT:
A sawhorse including a pair of V-cut-out or shaped side portions joined together by a vertical hinged portion. The sawhorse is openable for use and when folded side by side together can easily be carried.
REFERENCES:
patent: 591096 (1897-10-01), Berbecker
patent: 810776 (1906-01-01), Lay
patent: 1604254 (1926-10-01), Bate
patent: 1666400 (1928-04-01), Rose
patent: 2507620 (1950-05-01), Val Barbara
patent: 2733740 (1956-02-01), Little
patent: 3034546 (1962-05-01), Parsons
patent: 3148746 (1964-09-01), Juculano
patent: 4113056 (1978-09-01), De Lorenzo
Dumont Harry R.
Machado Reinaldo P.
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