Title:
Mechanical golf swing instructor
United States Patent 2813721
Inventors:
Frank, Zega
Publication Date:
11/19/1957
Export Citation:
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Assignee:
Frank, Zega
Primary Class:
473/259
International Classes:
A63B69/36; A63B69/36
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US Patent References:
2756056Mechanical golf instruction aid
2653025Mechanical golf instruction aid
1960787Precision golf instructor
1944942Golf teaching and playing device
1854392Golf club guide