Title:
Ball throwing device
United States Patent 2646785
Inventors:
Martin, Goldman
Publication Date:
07/28/1953
Export Citation:
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Assignee:
Martin, Goldman
Primary Class:
124/21
Other Classes:
124/51.1
International Classes:
A63B69/40; A63B69/40
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US Patent References:
2540303Rubber spring target trap
2313409Tennis ball trap
2267163Baseball pitching machine
2267162Ball-throwing machine