Building block

Details Building block Building block

1976-04-20

1977-05-31

Murtagh, John E.

Static structures (e.g., buildings)

Opaque stonelike module

Nonrectangular cross-section

52594, 52DIG10, 46 25, E04C 110

Patent

active

040260879

ABSTRACT:
Tetrahedron blocks are used to assemble structures of various shapes and sizes. The blocks have side walls joined along ridges which converge at four corners of the block. Each wall has an opening shaped to receive a corner of an adjoining block making up a structural unit.

REFERENCES:
patent: 2425729 (1947-08-01), Sherbinin
patent: 3626604 (1971-12-01), Pierce
patent: 3666607 (1972-05-01), Weissman
patent: 3777359 (1973-12-01), Bardot
patent: 3782029 (1974-01-01), Bardot
patent: 3974611 (1976-08-01), Satterthwaite

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