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经营范围
发明名称
Improvements in or relating to electric signalling arrangements for protective or other purposes
摘要
申请公布号
GB705398(A)
申请公布日期
1954.03.10
申请号
GB19510008191
申请日期
1951.04.09
申请人
A. REYROLLE & COMPANY LIMITED
发明人
HAMILTON FREDERICK LESLIE;PATRICKSON JOHN BRIAN
分类号
H02H1/00;H04B3/11
主分类号
H02H1/00
代理机构
代理人
主权项
地址
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