Perfectionnements aux machines à écrire,申请号FRD839650-传众专利搜索

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发明名称	Perfectionnements aux machines à écrire
摘要
申请公布号	FR839650(A)	申请公布日期	1939.04.07
申请号	FRD839650	申请日期	1938.06.23
申请人	L. C. SMITH & CORONA TYPEWRITERS INC.	发明人
分类号	B41J13/20	主分类号	B41J13/20
代理机构		代理人
主权项
地址

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