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PROGRAMMED SWING TRAINING DEVICE
US 3,429,571 A
Filed
: 12/08/1966
Issued
: 02/25/1969
Est. Priority Date
: 12/08/1966
Status: Expired due to Term
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Current Assignee
Abel Roy Jr
Original Assignee
Abel Roy Jr
Inventors
ABEL ROY JR
Application Number
US04/600,072
Time in Patent Office
810 Days
Field of Search
US Class Current
473/212
CPC Class Codes
A63B 2024/0034
during flight
A63B 2069/0008
for batting
A63B 2220/805
Optical or opto-electronic ...
A63B 24/0021
Tracking a path or terminat...
A63B 69/0002
for baseball
A63B 69/36213
with arm or rod fixed on th...
A63B 69/3658
Means associated with the b...
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