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经营范围
发明名称
Improvements in or relating to electrolytic cells
摘要
申请公布号
GB425703(A)
申请公布日期
1935.03.20
申请号
GB19330029078
申请日期
1933.10.20
申请人
DAVID JOHNSON EVANS
发明人
分类号
C02F1/461;C02F1/467;C25B9/06
主分类号
C02F1/461
代理机构
代理人
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地址
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