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发明名称
KERNPROVENHET FOR ERHALLANDE AV ETT KERNPROV
摘要
申请公布号
SE400806(B)
申请公布日期
1978.04.10
申请号
SE19720011741
申请日期
1972.09.12
申请人
* DRESSER INDUSTRIAL PRODUCTS LTD
发明人
T O * WOLDA
分类号
E21B25/02;(IPC1-7):21B25/00
主分类号
E21B25/02
代理机构
代理人
主权项
地址
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