Indicator and score board for dart players,申请号GB19400007052-传众专利搜索

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发明名称	Indicator and score board for dart players
摘要
申请公布号	GB538470(A)	申请公布日期	1941.08.05
申请号	GB19400007052	申请日期	1940.04.19
申请人	FREDERICK WILLIAM HELDT	发明人
分类号	F41J3/02	主分类号	F41J3/02
代理机构		代理人
主权项
地址

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