Title:
Golf club velocity indicating device
United States Patent 2630012
US Patent References:
Stroke-indicating attachment for golf clubs
- - 1712609


Inventors:
John, Walker
Publication Date:
03/03/1953
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Assignee:
John, Walker
Primary Class:
473/233
International Classes:
G01P3/16; G01P3/02
Foreign References:
GB179079A