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发明名称
JEWELRY GRINDING JIG
摘要
申请公布号
KR910002538(Y1)
申请公布日期
1991.04.22
申请号
KR19890001833U
申请日期
1989.02.22
申请人
BYUN CHANG-KWON
发明人
KO KWANG-DEUK
分类号
B24B9/16;(IPC1-7):B24B9/16
主分类号
B24B9/16
代理机构
代理人
主权项
地址
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