Dual stud construction toy block

Details Dual stud construction toy block Dual stud construction toy block

1998-12-21

2000-02-15

Barkai, Raphael

Games, toys, and sports goods

Toy

Representation or scale model

D21504, 2101

Patent

active

D04207114

REFERENCES:
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patent: 4246718 (1981-01-01), Chatani
patent: 4305221 (1981-12-01), Chatani
patent: 4306373 (1981-12-01), Chatani et al.
patent: 5230195 (1993-07-01), Sease
patent: 5683283 (1997-11-01), Glynn

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