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发明名称
CORE-BREAKING TOOL
摘要
申请公布号
SU1244282(A1)
申请公布日期
1986.07.15
申请号
SU19853844000
申请日期
1985.01.17
申请人
OTDEL EX ISSLEDOVANIJ TSNI GEOLOGORAZVEDOCHNOGO INSTITUTA
发明人
NIKOLAEV IGOR I,SU;VORONOV VLADIMIR N,SU;CHIBISOV ANATOLIJ P,SU;BOCHKOV VIKTOR G,SU
分类号
E21B25/10
主分类号
E21B25/10
代理机构
代理人
主权项
地址
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