Patent
1978-01-10
1980-10-14
Shay, F. Barry
52 81, 52DIG10, 93 84R, A63H 3316
Patent
active
042273340
ABSTRACT:
Folded structures which are polyhedrons of generally toroidal shape, movable to various different stable configurations, made up of a series of hinged trapezoids.
REFERENCES:
patent: 3894352 (1975-07-01), Hooker
Scheffer Abner
Shay F. Barry
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