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发明名称	BASEBALL PRACTICE DEVICES
摘要
申请公布号	CA510638(A)	申请公布日期	1955.03.08
申请号	CAD510638	申请日期
申请人	HENRY R. WALDEN	发明人	HENRY R. WALDEN
分类号		主分类号
代理机构		代理人
主权项
地址

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