OVALE KEGELMEMBRANE FUER LAUTSPRECHER.,申请号DE195700I5995U-传众专利搜索

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发明名称	OVALE KEGELMEMBRANE FUER LAUTSPRECHER.
摘要
申请公布号	DE1756758(U)	申请公布日期	1957.11.28
申请号	DE195700I5995U	申请日期	1957.07.08
申请人	ISOPHON-WERKE G.M.B.H.	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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