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发明名称
A BASE ROCK EXCAVATION BEAT OF CRUSH A ROLLER
摘要
申请公布号
KR200198192(Y1)
申请公布日期
2000.10.02
申请号
KR20000006063U
申请日期
2000.03.04
申请人
SONG, JAE KYUNG
发明人
SONG, JAE KYUNG
分类号
E21B10/26;(IPC1-7):E21B10/26
主分类号
E21B10/26
代理机构
代理人
主权项
地址
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