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发明名称
Oil well casing pipe and method of producing same
摘要
申请公布号
US1993842(A)
申请公布日期
1935.03.12
申请号
US19340756719
申请日期
1934.12.10
申请人
A. O. SMITH CORPORATION
发明人
JASPER THOMAS MCLEAN
分类号
C21D7/10;E21B17/00
主分类号
C21D7/10
代理机构
代理人
主权项
地址
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