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发明名称
Vom fahrenden Zug ueber Ruhestromschienenkontakte und isolierte Schienen selbsttaetig gesteuerte Warnsignale fuer unbewachte Bahnuebergaenge
摘要
申请公布号
DE517182(C)
申请公布日期
1931.02.17
申请号
DE1929B143064D
申请日期
1929.04.10
申请人
OTTO BREKLE
发明人
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
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