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发明名称
Yarn guide
摘要
申请公布号
US2123948(A)
申请公布日期
1938.07.19
申请号
US19350037133
申请日期
1935.08.21
申请人
CELANESE CORPORATION OF AMERICA
发明人
HOWORTH HARMON
分类号
B65H57/00
主分类号
B65H57/00
代理机构
代理人
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