Movable ball bumper
United States Patent 2830819
US Patent References:
/0585537.html
- - 0585537

/1667481.html
- - 1667481

Baseball game apparatus
- - 2110902

Mechanical teeing apparatus
- - 2152680

Game
- - 2236536


Inventors:
Irving, Pearl
Publication Date:
04/15/1958
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Assignee:
HARRY WILLIAMS MFG COMPANY
Primary Class:
273/121A
Other Classes:
200/61.110
International Classes:
A63D13/00
US Patent References:
2299781Game apparatus
2642290Angularly adjustable ball bumper
2710756Selective ball return mechanism
2727743Ball bumper