Title:
Ball throwing machine
United States Patent 2793636
US Patent References:
/0956117.html
- - 0956117

/1036627.html
- - 1036627

/1313038.html
- - 1313038

/1316397.html
- - 1316397

Centrifugal gun
- - 1404378


Inventors:
Cook, Jay E.
Publication Date:
05/28/1957
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Assignee:
Cook, Jay E.
Primary Class:
124/6
Other Classes:
273/395
International Classes:
A63B69/40
US Patent References:
1408137Centrifugal gun
2508461Apparatus for practicing ping-pong and the like
2684062Centrifugal projector
Foreign References:
FR22110A