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发明名称
DIAMOND DRILL BIT
摘要
申请公布号
SU585270(A1)
申请公布日期
1977.12.25
申请号
SU19752156150
申请日期
1975.07.14
申请人
TSNI GEOLOGORAZVEDOCHNYJ I TSVETNYKH BLAGORODNYKH METALLOV,OT¯EóEHôE ÜKCüEPôMEHTAóÓHÕX ôCCóE¯OBAHôö
发明人
ROMANOV VYACHESLAV P,SU;KOTELNIKOV EVGENIJ S,SU;SUMANEEV NIKOLAJ N,SU
分类号
(IPC1-7):E21B9/36
主分类号
(IPC1-7):E21B9/36
代理机构
代理人
主权项
地址
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