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发明名称
HYDRAULISCHE BOHRVORRICHTUNG MIT EINEM GEMEINSAMEN BETAETIGUNGSELEMENT FUER DEN SCHLAG- UND DEN DREHKREIS DES ANTRIEBS.
摘要
申请公布号
CH649129(A5)
申请公布日期
1985.04.30
申请号
CH19800004601
申请日期
1980.06.16
申请人
OY TAMPELLA AB
发明人
KARRU, ESA;SALMI, PEKKA;PAASONEN, HANNU;HELIN, AIMO
分类号
E21B3/00;B25D9/12;E21B1/00;E21B1/26;E21B6/00;E21B6/04;E21B44/02;(IPC1-7):E21C3/20
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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