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发明名称
Vorrichtung zur Verhinderung des Wanderns der Schienen in beiden Richtungen
摘要
申请公布号
DE535753(C)
申请公布日期
1931.10.15
申请号
DE1929F068494D
申请日期
1929.05.30
申请人
CHRISTIAN FALK
发明人
分类号
E01B13/02
主分类号
E01B13/02
代理机构
代理人
主权项
地址
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