Anzeigevorrichtung für geographische Daten etc.,申请号CHD138905-传众专利搜索

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发明名称	Anzeigevorrichtung für geographische Daten etc.
摘要
申请公布号	CH138905(A)	申请公布日期	1930.03.31
申请号	CHD138905	申请日期	1929.04.20
申请人	FRANK'SCHE VERLAGSHANDLUNG W. KELLER & CO.	发明人	FRANK'SCHE VERLAGSHANDLUNG W. KELLER & CO.
分类号	G09B29/00	主分类号	G09B29/00
代理机构		代理人
主权项
地址

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