Positional computer for bowling
United States Patent 3284928
US Patent References:
Game instructional device
- - 2942358

Bowling aid
- - 2989810

Calculator
- - 3081559


Inventors:
Kelley, Jerry O.
Publication Date:
11/15/1966
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Assignee:
MARLIN ELECTRIC COMPANY
Donald, Moloney J.
Primary Class:
434/249
Other Classes:
473/55, D18/10
International Classes:
A63D5/00; A63B69/00
Foreign References:
GB850179A