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发明名称
METAL TO METAL SEAL
摘要
申请公布号
AU538509(B2)
申请公布日期
1984.08.16
申请号
AU19830010322
申请日期
1983.01.12
申请人
GRAY TOOL CO.
发明人
JOHN KENT MCGEE;HAROLD L. LAFFERTY;CHARLES D. BRIDGES;ARCHIE L. SMITH
分类号
E21B33/00;E21B33/03;E21B33/04;F16J15/08;(IPC1-7):E21B33/04;F16J15/06
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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