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发明名称
Looper drive mechanism for sewing machines
摘要
申请公布号
US2915998(A)
申请公布日期
1959.12.08
申请号
US19570665549
申请日期
1957.06.13
申请人
G. M. PFAFF A.-G.
发明人
IRMSCHER WALTER
分类号
D05B57/02
主分类号
D05B57/02
代理机构
代理人
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地址
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