Yarn tensioning device,申请号US19380191438-传众专利搜索

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发明名称	Yarn tensioning device
摘要
申请公布号	US2224298(A)	申请公布日期	1940.12.10
申请号	US19380191438	申请日期	1938.02.19
申请人	CELANESE CORPORATION	发明人	HOWORTH HARMON
分类号	B65H59/10;D02H13/00	主分类号	B65H59/10
代理机构		代理人
主权项
地址

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