Title:
Golf club velocity indicating device
United States Patent 2630012


Inventors:
John, Walker
Application Number:
US70482846A
Publication Date:
03/03/1953
Filing Date:
10/22/1946
Assignee:
John, Walker
Primary Class:
International Classes:
G01P3/16
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US Patent References:
Foreign References:
GB179079A1922-05-04