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发明名称
PIPE CONNECTION FOR ADVANCE WORKING PIPES LAID UNDERGROUND BY AN ADVANCE WORKING TECHNIQUE
摘要
申请公布号
AU625568(B2)
申请公布日期
1992.07.16
申请号
AU19900060653
申请日期
1990.07.10
申请人
HALBERGERHUTTE GMBH
发明人
HANS-GEORG HEIN
分类号
E03F3/06;E21B17/08;E21D9/00;F16L9/14;F16L9/153;F16L21/02;(IPC1-7):F16L9/14
主分类号
E03F3/06
代理机构
代理人
主权项
地址
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