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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0737907 (1985-05-28) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 26 인용 특허 : 1 |
A bat has a generally uniform outside diameter from its handle through its extension from the handle through to its opposite end. The outside of the bat beyond the handle is polished and it has an interior cavity. Reinforcing is providing in the cavity to increase resistance of the bat to bending up
A bat comprising an elongated hollow tubular member having opposite ends said elongated hollow tubular member being between 32 and 36 inches in length and between 48 and 55 ounces in weight, and, said hollow tubular member having a central cavity and including a handle portion adapted to be gripped
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