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发明名称
STABILISATOR FUER SCHWERSTANGEN, TIEFBOHRVORRICHTUNGEN MIT STABILISATOREN UND VERFAHREN ZUM FREISCHNEIDEN EINES MIT STABILISATOREN AUSGERUESTETEN TIEFBOHRGESTAENGES
摘要
申请公布号
DE2535588(B2)
申请公布日期
1977.04.28
申请号
DE19752535588
申请日期
1975.08.08
申请人
发明人
分类号
E21B17/06;E21B17/10;E21B17/16;E21B31/00;F16D1/091;F16D1/094;(IPC1-7):E21B17/10;E21B41/00
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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