Title:
BOWLING BALL GRIP POSITION INDICATOR
United States Patent 3436075
Inventors:
Robinson, Charles H.
Publication Date:
04/01/1969
Assignee:
Charles, Robinson H.
Other Classes:
473/213, 33/510, 446/26, 116/222, 446/901
International Classes:
A63B69/36; A63D5/00; A63B69/00; A63B69/40