Apparatus for transmitting sound from a baseball field,申请号US19590817326-传众专利搜索

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法人/股东/高管

发明名称	Apparatus for transmitting sound from a baseball field
摘要
申请公布号	US3045064(A)	申请公布日期	1962.07.17
申请号	US19590817326	申请日期	1959.06.01
申请人	SELLERS MARGARET H	发明人	SELLERS MARGARET H.
分类号	H04R27/00	主分类号	H04R27/00
代理机构		代理人
主权项
地址

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