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发明名称
Hydraulisch setzbarer Bohrlochpacker fuer Mehrstrangfoerderung
摘要
申请公布号
DE1458613(B)
申请公布日期
1969.10.02
申请号
DED1458613
申请日期
1965.06.11
申请人
BROWN,CICERO COLUMBUS
发明人
COLUMBUS BROWN,CICERO
分类号
E21B33/122;E21B33/1295
主分类号
E21B33/122
代理机构
代理人
主权项
地址
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