Title:
Apparatus for practicing strokes with a tennis racket
United States Patent 3231271
Inventors:
Murphy, William E.
Publication Date:
01/25/1966
Export Citation:
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Assignee:
Murphy, William E.
Primary Class:
473/461
Other Classes:
434/247
International Classes:
A63B69/38; A63B69/38
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US Patent References:
3126206N/A
3125343N/A
2305187Sport practice apparatus
1484390Instruction chart for playing golf