Amusement devices: games – Board games – pieces – or boards therefor – Electrical
Patent
1992-10-08
1994-08-16
Marlo, George J.
Amusement devices: games
Board games, pieces, or boards therefor
Electrical
A63B 3714
Patent
active
053380398
ABSTRACT:
A golf ball having a plurality of dimples on a surface thereof characterized in that more than 40% of all dimples are polygonal in shape and have a double slope in section having a straight first slope and a straight second slope continued radially inwardly from the first slope, and the gradient of the first slope of said double slope disposed in the vicinity of a dimple edge is greater than that of the second slope disposed in the vicinity of the bottom thereof.
REFERENCES:
patent: 1418220 (1922-05-01), White
patent: 4090716 (1978-05-01), Martin et al.
patent: 4869512 (1989-09-01), Nomura et al.
patent: 4991852 (1991-02-01), Pattison
Ohshima Shinji
Oka Kengo
Marlo George J.
Sumitomo Rubber Industries Ltd.
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