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经营范围
发明名称
Improvements in maximum demand or load indicators for polyphase electrical circuits
摘要
申请公布号
GB560014(A)
申请公布日期
1944.03.15
申请号
GB19420016313
申请日期
1942.11.18
申请人
EDWARD FREDERICK EVENDEN;THE P. & B. ENGINEERING COMPANY LIMITED
发明人
分类号
G01R11/60
主分类号
G01R11/60
代理机构
代理人
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