MEHTOD OF PRODUCING A DIAPHRAGM OF AN ACOUSTIC INSTRUMENT,申请号GB19780047483-传众专利搜索

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发明名称	MEHTOD OF PRODUCING A DIAPHRAGM OF AN ACOUSTIC INSTRUMENT
摘要
申请公布号	GB2011310(B)	申请公布日期	1982.04.07
申请号	GB19780047483	申请日期	1978.12.07
申请人	PIONEER ELECTRONIC CORP	发明人
分类号	G10K13/00;H04R7/02;H04R31/00;(IPC1-7):B29D31/00	主分类号	G10K13/00
代理机构		代理人
主权项
地址

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