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发明名称
Method of and means for operating signalling or switch constructions by means sensitive to light
摘要
申请公布号
GB398278(A)
申请公布日期
1933.09.14
申请号
GB19320010381
申请日期
1932.04.11
申请人
MAGYAR WOLFRAMLAMPAI¬GYAR, KREMENEZKY JANOS RESZVENYTARSASAG
发明人
分类号
G08G1/04
主分类号
G08G1/04
代理机构
代理人
主权项
地址
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