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发明名称
Uberwachungseinrichtung fuer Lichtsignale mit Haupt- und Nebenfaeden
摘要
申请公布号
DE808244(C)
申请公布日期
1951.07.12
申请号
DE1949P052069
申请日期
1949.08.16
申请人
SIEMENS & HALSKE A.G.
发明人
ACKERMANN FRITZ
分类号
B61L5/18
主分类号
B61L5/18
代理机构
代理人
主权项
地址
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