Backgammon calculator

Details Backgammon calculator Backgammon calculator

1979-07-03

1981-11-03

Feifer, Melvin B.

Games, toys, and sports goods

Toy

Representation or scale model

D18 7, D2101

Patent

active

D02616661

REFERENCES:
patent: 4223893 (1980-09-01), Shane
Home Furnishings Daily, Thursday, Feb. 13, 1975, p. 11, FX-10 Casio Calculator.

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