Title:
BALL-PITCHING MACHINE WITH FORCED AIR ASSIST
United States Patent 3459168
US Patent References:
Gun
- - 2379784

/1204468.html
- - 1204468

Ball throwing device
- - 2112611

Ball throwing machine
- - 2716973

Ball throwing machine
- - 2793636


Inventors:
Bruce, Norman R.
Publication Date:
08/05/1969
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Assignee:
Norman, Bruce R.
Primary Class:
124/78
Other Classes:
124/51.100, 124/50, 124/1
International Classes:
A63B69/40; A63B65/12; A63B69/40
US Patent References:
2918915Tennis ball projecting machine
3288127Baseball pitching machine with ball curving device




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