Ball game training apparatus
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United States of America Patent
Stats
-
Mar 6, 2012
Grant Date -
Nov 24, 2011
app pub date -
May 18, 2010
filing date -
May 18, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball game training apparatus includes a positioning device, a first pivot device connected to the positioning device and turnable relative to the positioning device in X-axis direction, a second pivot device connected to the first pivot device and turnable relative to the first pivot device in Y-axis direction, and a driven device connected to the second pivot device and turnable relative to the second pivot device and having a force-receiving ball disposed remote from the second pivot device and strikable to move by an external force.
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Family
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