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发明名称
Feed means for sewing machines
摘要
申请公布号
US2777409(A)
申请公布日期
1957.01.15
申请号
US19540416900
申请日期
1954.03.17
申请人
WINBERG RAGNAR W
发明人
WINBERG RAGNAR W.
分类号
D05B27/14
主分类号
D05B27/14
代理机构
代理人
主权项
地址
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