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经营范围
发明名称
High pressure seal assembly
摘要
申请公布号
US3104121(A)
申请公布日期
1963.09.17
申请号
US19600027216
申请日期
1960.05.05
申请人
THORNHILL-CRAVER COMPANY, INC.
发明人
NORDIN OBERT L.;HALL GEORGE D.
分类号
E21B34/02;F16K1/38;F16K1/42;F16L17/02;F16L19/03
主分类号
E21B34/02
代理机构
代理人
主权项
地址
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