Practice bowling alley
United States Patent 3051485
US Patent References:
Bowling game apparatus
- - 2014306

Bowling instructor means
- - 2336997

Golf game
- - 2581738

Circle bowling game
- - 2887320


Inventors:
Heilbrun, David G.
Publication Date:
08/28/1962
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Assignee:
Heilbrun, David G.
Primary Class:
473/58
Other Classes:
473/199, 434/249, 250/222.200
International Classes:
A63D5/00; A63B69/00