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发明名称
End joints for tubing and method for making the same
摘要
申请公布号
US2886389(A)
申请公布日期
1959.05.12
申请号
US19580733720
申请日期
1958.05.07
申请人
MEINHART DONALD R
发明人
MEINHART DONALD R.
分类号
B21D39/04;F16B12/52
主分类号
B21D39/04
代理机构
代理人
主权项
地址
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