FLAT DIAPHRAGM FOR SOUND TRANSDUCERS AND METHOD FOR MANUFACTURING IT AND A LOUDSPEAKER INCLUDING SAID FLAT DIAPHRAGM,申请号ZA19710001695-传众专利搜索

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发明名称	FLAT DIAPHRAGM FOR SOUND TRANSDUCERS AND METHOD FOR MANUFACTURING IT AND A LOUDSPEAKER INCLUDING SAID FLAT DIAPHRAGM
摘要
申请公布号	ZA7101695(B)	申请公布日期	1972.04.26
申请号	ZA19710001695	申请日期	1971.03.15
申请人	BERTAGNI J	发明人	BERTAGNI J
分类号	H04R	主分类号	H04R
代理机构		代理人
主权项
地址

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