US Patent 7052419 Ball bat
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Patent abstract
A ball bat includes a handle portion, a tubular core, a middle device and a striking portion. The handle portion is made of plastics or wooden materials and has a front end, a rear end and a body between them. The tubular core is made of fiber reinforced plastic materials or metal and is embedded in the body of the handle portion. The striking portion is made of fiber reinforced plastic materials or metal and has a front end, a rear end and a body between them. The middle device has a predetermined weight and elasticity and is positioned between the front end of the handle portion and the rear end of the striking portion such that the handle portion and the striking portion can be connected to be a whole bat.
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Patent Inventor Names
Jung-Shih Chang0
Date of Patent
May 30, 2006
0Patent Application Number
108645760
Date Filed
June 10, 2004
0Patent Primary Examiner
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US Patent 7052419 Ball bat
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