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发明名称
Способ бурения скважин путем расплавления горных пород вольтовой дугой
摘要
申请公布号
SU73175(A1)
申请公布日期
1947.11.30
申请号
SU19460346591
申请日期
1946.06.24
申请人
BRODSKIJ A.G.;RABINOVICH I.I.
发明人
BRODSKIJ A.G.;RABINOVICH I.I.
分类号
E21C37/18
主分类号
E21C37/18
代理机构
代理人
主权项
地址
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