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经营范围
发明名称
ROTATIVE-PERCUSSIVE DRILLING HEAD
摘要
申请公布号
SU1434096(A1)
申请公布日期
1988.10.30
申请号
SU19874182000
申请日期
1987.01.14
申请人
GORLOVSKIJ DO POLT INSTITUTA
发明人
BELOGLAZOV VALERIJ G,SU;KASYAN ANATOLIJ V,SU;KUNITSA ANATOLIJ V,SU;RYAZANOV IGOR V,SU;SHMAKOV BORIS M,SU
分类号
E21B6/02
主分类号
E21B6/02
代理机构
代理人
主权项
地址
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