Baseball bat with modified internal air pressure,申请号US19810291563-传众专利搜索

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发明名称	Baseball bat with modified internal air pressure
摘要
申请公布号	USRE31811(E)	申请公布日期	1985.01.22
申请号	US19810291563	申请日期	1981.08.10
申请人		发明人
分类号	A63B59/06	主分类号	A63B59/06
代理机构		代理人
主权项
地址

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