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发明名称
WELL TOOL
摘要
申请公布号
US3424245(A)
申请公布日期
1969.01.28
申请号
USD3424245
申请日期
1966.07.19
申请人
B & W INC.
发明人
JAMES R. SOLUM;ROBERT O. PARK
分类号
E21B43/04;E21B43/10;(IPC1-7):E21B33/12;E21B23/06
主分类号
E21B43/04
代理机构
代理人
主权项
地址
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