Toy building block

Details Toy building block Toy building block

1985-12-04

1987-07-28

Rademaker, Charles A.

Games, toys, and sports goods

Toy

Representation or scale model

Patent

active

D02911000

REFERENCES:
patent: D244632 (1977-06-01), Christiansen
patent: D287519 (1986-12-01), Takahashi
patent: 1272685 (1918-07-01), Levis
patent: 3162973 (1964-12-01), Christiansen
patent: 4375139 (1983-03-01), Chatani

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