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发明名称
METHOD OF FORMING HOLES IN FROZEN SOIL
摘要
申请公布号
SU883241(A1)
申请公布日期
1981.11.23
申请号
SU19802903985
申请日期
1980.03.31
申请人
MIKHAJLOV VYACHESLAV B,SU;TARGULYAN YURIJ O,SU;VYSOTSKIJ DMITRIJ P,SU;TARGULYAN OGANES YU,SU;KOLESOV ALEKSANDR A,SU
发明人
MIKHAJLOV VYACHESLAV B,SU;TARGULYAN YURIJ O,SU;VYSOTSKIJ DMITRIJ P,SU;TARGULYAN OGANES YU,SU;KOLESOV ALEKSANDR A,SU
分类号
E02D7/02;E21B7/24;(IPC1-7):E02D7/02
主分类号
E02D7/02
代理机构
代理人
主权项
地址
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