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Baseball batting practice device
US 2,839,300 A
Filed
: 01/20/1956
Issued
: 06/17/1958
Est. Priority Date
: 01/20/1956
Status: Expired due to Term
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26
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26 Citations
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Current Assignee
Fredrick Mainland Keith
,
Louis Blaha Donald
Original Assignee
Fredrick Mainland Keith
,
Louis Blaha Donald
Inventors
LOUIS BLAHA DONALD
,
FREDRICK MAINLAND KEITH
Application Number
US03/560,421
Time in Patent Office
879 Days
Field of Search
US Class Current
473/430
CPC Class Codes
A63B 69/0079
Balls tethered to a line or...
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