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发明名称
Schienenverbindung mit keilfoermig ineinandergreifenden Schienenkopfenden
摘要
申请公布号
DE557569(C)
申请公布日期
1932.08.25
申请号
DED557569D
申请日期
申请人
HANS KALWIS
发明人
分类号
E01B11/32
主分类号
E01B11/32
代理机构
代理人
主权项
地址
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