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发明名称
Looper operating mechanism for sewing machines
摘要
申请公布号
US1827594(A)
申请公布日期
1931.10.13
申请号
US19290337606
申请日期
1929.02.05
申请人
UNION SPECIAL MASCHINENFABRIK, G.M.B.H.
发明人
LUTZ FRIEDRICH
分类号
D05B69/30
主分类号
D05B69/30
代理机构
代理人
主权项
地址
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