Bowling lanes and means associated therewith for exercising and correcting bodily movements
United States Patent 3317208

Inventors:
Birkle, George M.
Publication Date:
05/02/1967
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Assignee:
Birkle, George M.
Primary Class:
473/55
Other Classes:
473/114, 482/57, 434/249, 482/72
International Classes:
A63D5/00; A63B69/00
US Patent References:
3009268Bowling training alley
3052992Apparatus for practicing bowling
3058746Bowling practice aid
3076652Apparatus for instruction and practice use in bowling with tenpins
3120956Manually or automatically illuminated bowling guide
3171216Educational device
3210079Teaching and practice device for bowling
3220728Alley traversing mechanism for setting pins and for delivering balls and downed pins to the bowler