Sound projecting apparatus,申请号US19620185014-传众专利搜索

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法人/股东/高管

发明名称	Sound projecting apparatus
摘要
申请公布号	US3319001(A)	申请公布日期	1967.05.09
申请号	US19620185014	申请日期	1962.04.04
申请人	JEROME SIELER G	发明人	SIELER G. JEROME
分类号	H04R1/30	主分类号	H04R1/30
代理机构		代理人
主权项
地址

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