Procédé de reproduction de dessins au crayon et nouveaux crayons à dessin,申请号FRD783724-传众专利搜索

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发明名称	Procédé de reproduction de dessins au crayon et nouveaux crayons à dessin
摘要
申请公布号	FR783724(A)	申请公布日期	1935.07.18
申请号	FRD783724	申请日期	1935.01.07
申请人		发明人	WIENEKE HANS
分类号	B41C1/06;B41C1/10;B41M5/06	主分类号	B41C1/06
代理机构		代理人
主权项
地址

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