Helically grooved foamed football

Details Helically grooved foamed football Helically grooved foamed football

1987-11-16

1988-09-20

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 65EG, 273DIG20, A63B 4302, A63B 3714, A63B 3706

Patent

active

047720204

ABSTRACT:
An elastic foam football 10 with lengthwise spiral grooves 20 increasing in width and depth towards the middle of the ball for improved handling.

REFERENCES:
patent: 1931429 (1933-10-01), Buckner et al.
patent: 2194674 (1940-03-01), Riddell
patent: 3884466 (1975-05-01), MacDonald et al.
"Sports Illustrated", Jan. 7, 1980, p. 4, Relied On.

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