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发明名称
Compensating presser device for sewing machines
摘要
申请公布号
US2611333(A)
申请公布日期
1952.09.23
申请号
US19510210723
申请日期
1951.02.13
申请人
THE SINGER MANUFACTURING COMPANY
发明人
RITTER HERMAN
分类号
D05B29/08
主分类号
D05B29/08
代理机构
代理人
主权项
地址
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