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发明名称
Pump rod stuffing box assembly
摘要
申请公布号
US3134305(A)
申请公布日期
1964.05.26
申请号
US19630248942
申请日期
1963.01.02
申请人
JENSEN JR KRESTEN R
发明人
JR. KRESTEN R. JENSEN,
分类号
E21B33/08;F04B53/16
主分类号
E21B33/08
代理机构
代理人
主权项
地址
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