Patent
1979-04-30
1981-06-02
Hafer, Robert A.
46 31, A63H 3308
Patent
active
042703034
ABSTRACT:
A toy building tile unit having a surface adapted to provide a building panel, edge margins of the panel being offset on both top and bottom of the tile. One of said offset edge margins carrying means for interlocking with another tile.
REFERENCES:
patent: 2119921 (1938-06-01), Levy
patent: 3334798 (1967-08-01), Pezely et al.
patent: 3570170 (1971-03-01), Kishi
patent: 3701214 (1972-10-01), Sakamoto
Stewart Lloyd W.
Xanthopoulos Piritheos G.
Artzan Corporation
Hafer Robert A.
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