Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1977-12-29
1979-04-24
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182 20, 108121, 248168, A45F 326
Patent
active
041507339
ABSTRACT:
A foldable assembly comprising a seat rotatably mounted on a support to which are collapsibly mounted three legs. One of the legs can be secured to a tree. Foothold means are provided on one of the legs. Means are provided also to adjust the length of the legs.
REFERENCES:
patent: 1205057 (1916-11-01), Sulenski
patent: 1240119 (1917-09-01), Burns
patent: 3261425 (1966-07-01), Harder
patent: 3396818 (1968-08-01), Moragne
patent: 3927733 (1975-12-01), Wurn
patent: 3990537 (1976-11-01), Swenson
Machado Reinaldo P.
Podell Howard I.
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