Taper grinding of artificial filaments,申请号US19430500922-传众专利搜索

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发明名称	Taper grinding of artificial filaments
摘要
申请公布号	US2365396(A)	申请公布日期	1944.12.19
申请号	US19430500922	申请日期	1943.09.02
申请人	E. I. DU PONT DE NEMOURS & COMPANY	发明人	CUNNINGHAM FRANCIS GRAHAM
分类号	B24B19/16	主分类号	B24B19/16
代理机构		代理人
主权项
地址

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