Title:
CUE BALL ANGLE COMPUTER INCLUDING A CURVED MIRROR FOR INDICATING AN IMPACT POINT
Document Type and Number:
United States Patent 3463593
Publication Date:
08/26/1969
Assignee:
Michael, Horan H.
Other Classes:
356/142, 356/247, 356/399
International Classes:
A63D15/00; G02B5/08; G01C1/06; G01B11/26; G02B27/32