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发明名称
Bobbin rotation restraining means for sewing machines
摘要
申请公布号
US2555658(A)
申请公布日期
1951.06.05
申请号
US19490073638
申请日期
1949.01.29
申请人
THE SINGER MANUFACTURING COMPANY
发明人
RITTER HERMAN
分类号
D05B57/26
主分类号
D05B57/26
代理机构
代理人
主权项
地址
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