Rolling ball game,申请号US19530335309-传众专利搜索

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发明名称	Rolling ball game
摘要
申请公布号	US2744753(A)	申请公布日期	1956.05.08
申请号	US19530335309	申请日期	1953.02.05
申请人	BEETHOVEN HARRY J	发明人	BEETHOVEN HARRY J.
分类号	A63D13/00;A63F7/00	主分类号	A63D13/00
代理机构		代理人
主权项
地址

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