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Practice swing bat
US 3,137,504 A
Filed
: 05/03/1962
Issued
: 06/16/1964
Est. Priority Date
: 05/03/1962
Status: Expired due to Term
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Petitions
49
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Current Assignee
Angelo L. Menegus
,
Victor C. Zordan
Original Assignee
Angelo L. Menegus
,
Victor C. Zordan
Inventors
Zordan, Victor C.
,
Menegus, Angelo L.
Application Number
US04/192,117
Time in Patent Office
775 Days
Field of Search
US Class Current
473/457
CPC Class Codes
A63B 2024/0068
Comparison to target or thr...
A63B 2102/18
Baseball, rounders or simil...
A63B 2209/08
magnetic
A63B 2220/51
Force
A63B 24/0062
Monitoring athletic perform...
A63B 47/00
Devices for handling or tre...
A63B 59/50
Substantially rod-shaped ba...
A63B 60/04
Movable ballast means A63B1...
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