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发明名称
OElfoerderungsanlage fuer Tiefbohrungen
摘要
申请公布号
DE1062649(B)
申请公布日期
1959.08.06
申请号
DE1955F017314
申请日期
1955.04.12
申请人
FA. OTTO FUCHS
发明人
WIECHELL DR.-ING. HEINZ;BOECKING ALFRED;STOEHR WILLI
分类号
E21B17/00;E21B43/08
主分类号
E21B17/00
代理机构
代理人
主权项
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