发明名称 |
Long life bat |
摘要 |
A long life softball bat comprising a bat and a plurality of positional reference marks is disclosed and claimed. The positional reference marks provide a frame of reference which enables a user of the bat to distribute the impact force of a batted ball about the surface of said bat.
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申请公布号 |
US6149539(A) |
申请公布日期 |
2000.11.21 |
申请号 |
US19970904899 |
申请日期 |
1997.08.01 |
申请人 |
DEMARINI SPORTS, INC. |
发明人 |
DEMARINI, RAYMOND VINCENT |
分类号 |
A63B59/06;(IPC1-7):A63B59/06 |
主分类号 |
A63B59/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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