VORRICHTUNG ZUR LAUTLOSEN VERSTAENDIGUNG ZWISCHEN GAST UND BEDIENUNG.,申请号DE195400G8926U-传众专利搜索

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发明名称	VORRICHTUNG ZUR LAUTLOSEN VERSTAENDIGUNG ZWISCHEN GAST UND BEDIENUNG.
摘要
申请公布号	DE1692117(U)	申请公布日期	1955.01.27
申请号	DE195400G8926U	申请日期	1954.03.08
申请人	RUDOLF GRELLA	发明人	RUDOLF GRELLA
分类号		主分类号
代理机构		代理人
主权项
地址

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