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经营范围
发明名称
THREADED SUCKER ROD JOINT
摘要
申请公布号
US3489445(A)
申请公布日期
1970.01.13
申请号
USD3489445
申请日期
1967.10.18
申请人
ARCHER W. KAMMERER JR.
发明人
ARCHER W. KAMMERER JR.
分类号
E21B17/042;F04B53/14;F16B7/18;F16L15/00;F16L15/08;(IPC1-7):F16B7/18
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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