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发明名称
METHOD OF FINLESS COLD FORMING OF SEWING MACHINE NEEDLES
摘要
申请公布号
GB1558926(A)
申请公布日期
1980.01.09
申请号
GB19770005349
申请日期
1977.02.09
申请人
SINGER CO
发明人
分类号
D05B85/02;B21G1/00;B21G1/04;D05B85/00;(IPC1-7):B21G1/02
主分类号
D05B85/02
代理机构
代理人
主权项
地址
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