Perfectionnements à la fabrication ou au traitement de matières constituées par ou contenant des esters ou ethers de cellulose,申请号FRD689800-传众专利搜索

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发明名称	Perfectionnements à la fabrication ou au traitement de matières constituées par ou contenant des esters ou ethers de cellulose
摘要
申请公布号	FR689800(A)	申请公布日期	1930.09.11
申请号	FRD689800	申请日期	1930.02.12
申请人		发明人	DREYFUS HENRY
分类号	D01F2/28	主分类号	D01F2/28
代理机构		代理人
主权项
地址

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