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发明名称
Thread guide for sewing machines
摘要
申请公布号
US2691951(A)
申请公布日期
1954.10.19
申请号
US19520311747
申请日期
1952.09.26
申请人
GELLMAN MANUFACTURING CO.
发明人
HANSEN WARREN
分类号
D05B55/02
主分类号
D05B55/02
代理机构
代理人
主权项
地址
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