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经营范围
发明名称
Cathodic protection system
摘要
申请公布号
US2402494(A)
申请公布日期
1946.06.18
申请号
US19430491422
申请日期
1943.06.18
申请人
SHELL DEVELOPMENT COMPANY
发明人
HANTZSCH RALPH E.;MUDD ORA C.
分类号
C23F13/04
主分类号
C23F13/04
代理机构
代理人
主权项
地址
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