Batting practise devices
United States Patent 3006647
US Patent References:
Apparatus for practicing golf and other games
- - 2147105

Bowling ball attachment
- - 2345205

Ball game apparatus
- - 2606025


Inventors:
Lee, Haskett Elmer
Publication Date:
10/31/1961
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Assignee:
Keith, William Curtis
Primary Class:
473/429
Other Classes:
473/143, D21/719
International Classes:
A63B69/00
Foreign References:
GB189601869A