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经营范围
发明名称
Elektromagnetisches Signalsystem fuer Verkehrswege
摘要
申请公布号
DE2222110(A1)
申请公布日期
1972.11.30
申请号
DE19722222110
申请日期
1972.05.05
申请人
BRITISH RAILWAYS BOARD
发明人
SAMBROOK BIRKIN,MICHAEL
分类号
B61L3/12
主分类号
B61L3/12
代理机构
代理人
主权项
地址
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