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发明名称
Bobbin
摘要
申请公布号
US1977714(A)
申请公布日期
1934.10.23
申请号
US19310542278
申请日期
1931.06.05
申请人
CELANESE CORPORATION OF AMERICA
发明人
BERAN CHARLES F.
分类号
B65H75/14
主分类号
B65H75/14
代理机构
代理人
主权项
地址
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