Crystal pickup unit,申请号US19400338519-传众专利搜索

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发明名称	Crystal pickup unit
摘要
申请公布号	US2261616(A)	申请公布日期	1941.11.04
申请号	US19400338519	申请日期	1940.06.03
申请人	WEBSTER ELECTRIC COMPANY	发明人	DALLY ROY
分类号	H04R17/04	主分类号	H04R17/04
代理机构		代理人
主权项
地址

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