TRASDUTTORE PIEZOCERAMICO DI SUONERIA IN PARTICOLARE PER APPARECCHI TELEFONICI,申请号IT19900021176U-传众专利搜索

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发明名称	TRASDUTTORE PIEZOCERAMICO DI SUONERIA IN PARTICOLARE PER APPARECCHI TELEFONICI
摘要
申请公布号	IT9021176(V0)	申请公布日期	1990.05.14
申请号	IT19900021176U	申请日期	1990.05.14
申请人	ALCATEL DIAL FACE	发明人	D'AVOLIO ANTONIO;PESENTI LUIGI
分类号	H04M;(IPC1-7):H04M/	主分类号	H04M
代理机构		代理人
主权项
地址

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