MANUFACTURE OF DIAPHRAGM FOR SPEAKER,申请号JP19900287875-传众专利搜索

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发明名称	MANUFACTURE OF DIAPHRAGM FOR SPEAKER
摘要
申请公布号	JPH04161000(A)	申请公布日期	1992.06.04
申请号	JP19900287875	申请日期	1990.10.25
申请人	YAMAHA CORP	发明人	ITO HIROAKI;MOCHIZUKI OSAMU
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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