Toy building block

Details Toy building block Toy building block

1981-06-26

1984-06-26

Zarfas, Louis S.

Games, toys, and sports goods

Toy

Representation or scale model

D21166

Patent

active

D02744449

REFERENCES:
patent: D52546 (1918-10-01), Schmelzer
patent: D143275 (1945-12-01), Dabrohva
patent: D155329 (1949-09-01), Bindman
patent: D248881 (1978-08-01), Goldfarb et al.
patent: 2078709 (1937-04-01), Hecht
patent: 3334798 (1967-08-01), Pezely, Jr. et al.
patent: 3410021 (1968-11-01), Patterson
patent: 3477167 (1969-11-01), Ach
patent: 3819188 (1974-06-01), Freedman

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