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发明名称
HIGHHTEMPERATURE WELL PACKER
摘要
申请公布号
JPS563792(A)
申请公布日期
1981.01.16
申请号
JP19800078886
申请日期
1980.06.11
申请人
DRESSER IND
发明人
TOOMASU YUUJIN ATSUPUTON
分类号
E21B33/128;E21B33/12
主分类号
E21B33/128
代理机构
代理人
主权项
地址
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