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经营范围
发明名称
Improvements in or relating to electrical voltage or current controlling apparatus
摘要
申请公布号
GB638281(A)
申请公布日期
1950.06.07
申请号
GB19470001408
申请日期
1947.01.15
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
MORTLEY WILFRID SINDON
分类号
G05F1/52
主分类号
G05F1/52
代理机构
代理人
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