Sport practice apparatus

Details Sport practice apparatus Sport practice apparatus

1976-01-23

1977-09-20

Grieb, William H.

Amusement devices: games

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

Target

273 26E, 273197A, A63B 6100

Patent

active

040492664

ABSTRACT:
An apparatus for practising stroking a ball with a racket as in the game of tennis which provides an indication of correct execution of a stroke comprising a racket target means and a rotating ball means. The rotating ball means is mounted for rotation in a vertical plane upon being struck. A path defining means is provided which arrests the rotation of the ball except when it has been hit correctly.

REFERENCES:
patent: 1603094 (1926-10-01), Owens
patent: 2247072 (1941-06-01), Stow
patent: 2305187 (1942-12-01), Neiden
patent: 2697603 (1954-12-01), Haines
patent: 2851272 (1958-09-01), Shatzer
patent: 2929632 (1960-03-01), Moffatt
patent: 3231271 (1966-01-01), Murphy
patent: 3421200 (1967-09-01), Brandley
patent: 3503611 (1970-03-01), McPherson
patent: 3825259 (1974-07-01), Burchett
patent: 3948517 (1976-04-01), Feiler

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