CUE BALL ANGLE COMPUTER INCLUDING A CURVED MIRROR FOR INDICATING AN IMPACT POINT
United States Patent 3463593
US Patent References:
/1311253.html
- - 1311253

Traffic signal
- - 1457269

Optical target
- - 2904890


Inventors:
Horan, Michael H.
Publication Date:
08/26/1969
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Assignee:
Michael, Horan H.
Primary Class:
473/2
Other Classes:
356/142, 356/247, 356/399
International Classes:
A63D15/00; G02B5/08; G01C1/06; G01B11/26; G02B27/32




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