Verfahren zur Herstellung von Schreibtafeln,申请号DE1934G090943D-传众专利搜索

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发明名称	Verfahren zur Herstellung von Schreibtafeln
摘要
申请公布号	DE651349(C)	申请公布日期	1937.10.12
申请号	DE1934G090943D	申请日期	1934.11.27
申请人	HANS GOETZ	发明人
分类号	B43L1/00	主分类号	B43L1/00
代理机构		代理人
主权项
地址

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