Title:
Ball throwing machine having two rotatable discs with converging and diverging interstices
United States Patent 3399660


Inventors:
Edward, Swartout
Application Number:
US50310065A
Publication Date:
09/03/1968
Filing Date:
10/23/1965
Assignee:
EDWARD SWARTOUT
Primary Class:
Other Classes:
124/50
International Classes:
A63B69/40
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US Patent References:
2737941Mechanical gun1956-03-13
2729206Ball throwing device1956-01-03