Amusement devices: games – Chance devices – Electric or magnetic
Patent
1976-05-10
1977-05-03
Pinkham, Richard C.
Amusement devices: games
Chance devices
Electric or magnetic
273136K, A63F 302
Patent
active
040210456
ABSTRACT:
A chess or checker board has individual blocks for each square enclosed by a raisable normally recessed lattice or egg-crate structure.
REFERENCES:
patent: 715794 (1902-12-01), Haskell
patent: 887342 (1908-05-01), McLane
patent: 2379465 (1945-07-01), Vollmer
patent: 2584601 (1952-02-01), Mauser
Cohen Jerry
Hieken Charles
Pinkham Richard C.
Strappello Harry G.
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