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经营范围
发明名称
Arrangements for indicating a characteristic of an alternating current electric supply system
摘要
申请公布号
GB559654(A)
申请公布日期
1944.02.29
申请号
GB19420011933
申请日期
1942.08.25
申请人
STANDARD TELEPHONES AND CABLES LIMITED;ERIC MALCOLM SWIFT MCWHIRTER;ROLAND HARRIS DUNN;CYRIL HERBERT CHAMBERS
发明人
分类号
G01R1/30
主分类号
G01R1/30
代理机构
代理人
主权项
地址
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