Instructional device for tennis players

Details Instructional device for tennis players Instructional device for tennis players

1986-03-31

1987-12-08

Grieb, William H.

Education and demonstration

Physical education

434404, G09B 122

Patent

active

047116331

ABSTRACT:
An instructional device is provided for tennis players to identify their stroke problems and to analyze the cause of those stroke problems. In addition, the instructional device of the present invention includes a grip analysis section to help tennis players identify and correct their grip problems.

REFERENCES:
patent: 3249085 (1966-05-01), St. Jean

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