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发明名称
Combined feed mechanism with stepped feed-dogs for sewing machines
摘要
申请公布号
US3416473(A)
申请公布日期
1968.12.17
申请号
US19650429583
申请日期
1965.02.01
申请人
UNION SPECIAL MACHINE COMPANY
发明人
PETERSON ALBERT C.;HAYES ROBERT A.;LUKINS RICHARD H.
分类号
D05B27/08
主分类号
D05B27/08
代理机构
代理人
主权项
地址
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