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发明名称
STAENDIG ERREGTE, BELASTUNGSFREIE ZUG-PACKERVORRICHTUNG
摘要
申请公布号
DE3044336(A1)
申请公布日期
1981.09.10
申请号
DE19803044336
申请日期
1980.11.25
申请人
BAKER INTERNATIONAL CORP.
发明人
C. PRESTON,DAN;C. REITER,KENNETH
分类号
E21B33/129;(IPC1-7):E21B33/12
主分类号
E21B33/129
代理机构
代理人
主权项
地址
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