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发明名称
Threader for sewing machine needles
摘要
申请公布号
US2777622(A)
申请公布日期
1957.01.15
申请号
US19540410547
申请日期
1954.02.16
申请人
EWALD FEHLMANN
发明人
FEHLMANN EWALD
分类号
D05B87/00
主分类号
D05B87/00
代理机构
代理人
主权项
地址
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