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发明名称
Trockenluft-System zum Bohren von Schächten in hartem Gestein.
摘要
申请公布号
DE69013666(T2)
申请公布日期
1995.03.02
申请号
DE19906013666T
申请日期
1990.12.27
申请人
INCO LTD., TORONTO, ONTARIO, CA
发明人
MCBRIDE SINCLAIR, KIRK, LIVELY, ONTARIO P0M 2EO, CA;ENGLAND, JOHN RICHARD, SUDBURY, ONTARIO P3A 1R5, CA
分类号
E21B7/00;E21B7/18;E21B17/10;E21B17/16;E21B17/18;E21B21/12;E21B21/16;E21D1/06;(IPC1-7):E21B21/12
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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