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发明名称
Thread check for sewing machines
摘要
申请公布号
US2055945(A)
申请公布日期
1936.09.29
申请号
US19350051663
申请日期
1935.11.26
申请人
REED ROBERT W
发明人
REED ROBERT W.
分类号
D05B47/00
主分类号
D05B47/00
代理机构
代理人
主权项
地址
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