Schulwandtafel mit dauerhafter Schreibflaeche,申请号DE1952Z002491-传众专利搜索

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发明名称	Schulwandtafel mit dauerhafter Schreibflaeche
摘要
申请公布号	DE917118(C)	申请公布日期	1954.08.26
申请号	DE1952Z002491	申请日期	1952.02.16
申请人	GERDA LEMME, GEB. ZIEMKE	发明人	ZIEMKE GERDA LEMME, GEB.
分类号	B43L1/04	主分类号	B43L1/04
代理机构		代理人
主权项
地址

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