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发明名称
DIAMOND ROCK-BREAKING TOOL
摘要
申请公布号
SU572562(A1)
申请公布日期
1977.09.15
申请号
SU19762339037
申请日期
1976.03.29
申请人
VNII METODIKI TEKHNIKI RAZVEDKI
发明人
BYCHENKOV EVGENIJ ,SU;BABUSHKIN BORIS D,SU;LUNEVA VALENTINA ,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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