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发明名称
POWER CONTRAL APPARATUS FOR ROCK DRILL
摘要
申请公布号
KR790001318(Y1)
申请公布日期
1979.08.23
申请号
KR19740003524U
申请日期
1974.06.28
申请人
DOYO KOGYO CO LTD
发明人
MASIO TORU
分类号
主分类号
代理机构
代理人
主权项
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