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发明名称
ROCK BOLT ASSEMBLY FOR ANCHORING ROCK LAYER OF TUNNEL
摘要
申请公布号
KR1019960009284(B1)
申请公布日期
1996.07.16
申请号
KR1019930019520
申请日期
1993.09.23
申请人
发明人
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主分类号
代理机构
代理人
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