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发明名称
Looper-operating mechanism for sewing machines
摘要
申请公布号
GB364465(A)
申请公布日期
1932.01.07
申请号
GB19310010959D
申请日期
1931.04.14
申请人
THE SINGER MANUFACTURING COMPANY
发明人
分类号
D05B57/30
主分类号
D05B57/30
代理机构
代理人
主权项
地址
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