Racket attachment whistle

Details Racket attachment whistle Racket attachment whistle

1993-04-19

1994-08-23

Brown, Theatrice

Amusement devices: games

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

Target

A63B 6938

Patent

active

053401026

ABSTRACT:
A training device for a tennis racket is provided which consists of a clamp for attaching a small whistle transversely to a throat of the tennis racket. A first sound will be made by the small whistle, when a tennis player swings the tennis racket in a slice position. A second sound will be made by the small whistle when the tennis player swings the tennis racket in a top spin position.

REFERENCES:
patent: 2780098 (1957-02-01), Marah
patent: 2950115 (1960-08-01), Hurdzan
patent: 3113781 (1963-12-01), Guier
patent: 3113782 (1963-12-01), Guier
patent: 3137504 (1964-06-01), Zordan et al.
patent: 4090707 (1978-05-01), Saar
patent: 4094504 (1978-06-01), Barasch
patent: 4101132 (1978-07-01), Conrey
patent: 4274631 (1981-06-01), Hayazaki
patent: 4898386 (1990-02-01), Anderson
patent: 5133551 (1992-07-01), Handy

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