ACOUSTIC DIAPHRAGM AND ITS MANUFACTURE,申请号JP19910120472-传众专利搜索

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发明名称	ACOUSTIC DIAPHRAGM AND ITS MANUFACTURE
摘要
申请公布号	JPH0583793(A)	申请公布日期	1993.04.02
申请号	JP19910120472	申请日期	1991.05.24
申请人	YAMAHA CORP	发明人	KAGEYAMA TOMOYUKI;SUZUKI KUNIO
分类号	H04R7/02;H04R31/00	主分类号	H04R7/02
代理机构		代理人
主权项
地址

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