Title:
BOWLING BALL GRIP POSITION INDICATOR
United States Patent 3436075

Inventors:
Robinson, Charles H.
Publication Date:
04/01/1969
View Patent Images:
Assignee:
Charles, Robinson H.
Primary Class:
Other Classes:
473/213, 33/510, 446/26, 116/222, 446/901
International Classes:
A63B69/36; A63D5/00; A63B69/00; A63B69/40
US Patent References:
3206200Wrist attached plumb indicator for bowlers
3238939Wrist support




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