Membran, insbesondere für elektroakustische Wandler,申请号ATD173740-传众专利搜索

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发明名称	Membran, insbesondere für elektroakustische Wandler
摘要
申请公布号	AT173740(B)	申请公布日期	1953.01.26
申请号	ATD173740	申请日期	1949.05.07
申请人	DIPL. ING. WILLIBALD LUTSCHINGER	发明人	DIPL. ING. WILLIBALD LUTSCHINGER
分类号		主分类号
代理机构		代理人
主权项
地址

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