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发明名称
Tubing coupling
摘要
申请公布号
US2245963(A)
申请公布日期
1941.06.17
申请号
US19400317373
申请日期
1940.02.05
申请人
MERLA TOOL CORPORATION
发明人
CRICKMER CHARLES S.
分类号
E21B17/046;F16L37/248
主分类号
E21B17/046
代理机构
代理人
主权项
地址
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