Static structures (e.g. – buildings) – Module or panel having discrete edgewise or face-to-face... – Having integral key
Patent
1991-06-11
1993-07-13
Friedman, Carl D.
Static structures (e.g., buildings)
Module or panel having discrete edgewise or face-to-face...
Having integral key
52594, 52595, 446120, D21114, E04C 100
Patent
active
052262758
ABSTRACT:
A building block made with a top face adapted to be interlocked with the lower edge of a superposed, correspondingly made block. The lower edge has an internal pending lip and a downwardly tapering wedge above and adjacent said lip. The top face has a marginal groove for receiving the pending lip of the superposed block and the top face has a ledge partly extending over the groove for gripping the wedge of the superposed block.
REFERENCES:
patent: 923975 (1909-06-01), Johnston
patent: 1068338 (1913-07-01), Hardoncourt
patent: 3034254 (1962-05-01), Christiansen
patent: 3449878 (1969-06-01), Hern
patent: 3768846 (1973-10-01), Hensley et al.
patent: 3962817 (1976-06-01), Vullierme
patent: 4258522 (1981-03-01), Ararmal
Canfield Robert
Friedman Carl D.
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