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发明名称
DEVICE FOR AUTOMATICALLY THREADING A SEWING MACHINE
摘要
申请公布号
GB2057025(A)
申请公布日期
1981.03.25
申请号
GB19800025798
申请日期
1980.08.07
申请人
SINGER CO
发明人
分类号
D05B53/00;D05B51/00;(IPC1-7):D05B23/00
主分类号
D05B53/00
代理机构
代理人
主权项
地址
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