Shape sorting toy

Details Shape sorting toy Shape sorting toy

1983-08-23

1986-03-11

Rademaker, Charles A.

Games, toys, and sports goods

Toy

Representation or scale model

D21 74, D21157

Patent

active

D02829401

REFERENCES:
patent: D82753 (1930-12-01), Miles
patent: D160217 (1950-09-01), Sebel
patent: D160219 (1950-09-01), Sebel
patent: D235459 (1975-06-01), Terzian et al.
patent: D246396 (1977-11-01), Saito

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