A PIEZOELECTRIC SOUND PRODUCER,申请号GB19840005855-传众专利搜索

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发明名称	A PIEZOELECTRIC SOUND PRODUCER
摘要
申请公布号	GB2140653(B)	申请公布日期	1986.11.26
申请号	GB19840005855	申请日期	1984.03.06
申请人	TADASHI * SAWAFUJI	发明人	TADASHI * SAWAFUJI
分类号	H04R1/36;H04R17/00;(IPC1-7):H04R1/32	主分类号	H04R1/36
代理机构		代理人
主权项
地址

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