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发明名称
MASCHINE ZUM BOHREN IN GESTEINEN
摘要
申请公布号
DE3011263(A1)
申请公布日期
1980.10.09
申请号
DE19803011263
申请日期
1980.03.24
申请人
HANSSON,GOETE INGEMAR
发明人
INGEMAR HANSSON,GOETE
分类号
E21B4/10;E21B4/16;E21B4/18;E21B4/20;(IPC1-7):E21B7/02
主分类号
E21B4/10
代理机构
代理人
主权项
地址
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