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摘要
申请公布号
KR900005457(Y1)
申请公布日期
1990.06.20
申请号
KR19870000408U
申请日期
1987.01.16
申请人
KIM SON-JON
发明人
KIM SON-JON
分类号
B21K21/06;B21K21/10;(IPC1-7):B21K21/10
主分类号
B21K21/06
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