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发明名称
Operating mechanism for needle threading devices
摘要
申请公布号
US2739553(A)
申请公布日期
1956.03.27
申请号
US19540420169
申请日期
1954.03.31
申请人
G. M. PFAFF A.-G.
发明人
ZINK HERMANN;WENZ HERBERT
分类号
D05B87/00
主分类号
D05B87/00
代理机构
代理人
主权项
地址
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