Tennis ball

Details Tennis ball Tennis ball

1985-11-14

1988-04-26

Marlo, George J.

Amusement devices: games

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

Target

273 61R, 273DIG20, A63B 6938

Patent

active

047399899

ABSTRACT:
A tennis ball comprised of a shell and cover, the ball having increased deformation for beginner's play and being characterized by the ball being between 30 and 52 grams in weight and 5.0 to 7.6 centimeters in diameter. The wall thickness of the shell is between 1.2 and 2.8 millimeters.

REFERENCES:
patent: 902330 (1908-10-01), Rowley
patent: 1653893 (1927-12-01), Eden
patent: 1684557 (1928-09-01), Saunders
patent: 1833478 (1931-11-01), Williams et al.
patent: 2012283 (1935-08-01), Miller
patent: 2020612 (1935-11-01), McGrath et al.
patent: 3888347 (1975-06-01), Kramer
patent: 4098504 (1978-07-01), Koziol et al.
patent: 4327912 (1982-05-01), Hoffman
patent: 4358111 (1982-11-01), Papinsick et al.
patent: 4439471 (1984-03-01), Lacoste et al.
patent: 4596389 (1986-06-01), Frankowski

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