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发明名称
Feed-cup pressure regulating mechanism for sewing machines
摘要
申请公布号
US2502387(A)
申请公布日期
1950.03.28
申请号
US19480046234
申请日期
1948.08.26
申请人
THE SINGER MANUFACTURING COMPANY
发明人
HACKLANDER HANS
分类号
D05B27/18
主分类号
D05B27/18
代理机构
代理人
主权项
地址
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