,申请号JP19750044970U-传众专利搜索

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发明名称
摘要
申请公布号	JPS565428(Y2)	申请公布日期	1981.02.05
申请号	JP19750044970U	申请日期	1975.04.03
申请人		发明人
分类号	H04R1/44;B01B1/00;G01S7/52;G01S7/521;H01L41/00;(IPC1-7):H04R1/44	主分类号	H04R1/44
代理机构		代理人
主权项
地址

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