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发明名称
摘要
申请公布号
JPS57154131(U)
申请公布日期
1982.09.28
申请号
JP19810038420U
申请日期
1981.03.19
申请人
发明人
分类号
B23P21/00;B21D5/01;B23P19/00;H01F41/02;(IPC1-7):H01F41/02
主分类号
B23P21/00
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