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发明名称
Thread controller for sewing machines
摘要
申请公布号
US1884490(A)
申请公布日期
1932.10.25
申请号
US19300499335
申请日期
1930.12.01
申请人
UNION SPECIAL MACHINE COMPANY
发明人
ZEIER FREDERICK F.;SMITH CLARENCE C.
分类号
D05B63/00
主分类号
D05B63/00
代理机构
代理人
主权项
地址
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