PIEZOELECTRIC ACOUSTIC TRANSDUCER,申请号JP19870181988-传众专利搜索

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发明名称	PIEZOELECTRIC ACOUSTIC TRANSDUCER
摘要
申请公布号	JPS6424700(A)	申请公布日期	1989.01.26
申请号	JP19870181988	申请日期	1987.07.21
申请人	NIPPON CHEMICON CORP	发明人	KITAMURA TADASHI;TAKAGI MITSUGI
分类号	H04R17/00	主分类号	H04R17/00
代理机构		代理人
主权项
地址

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