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发明名称
Schiene mit im Kopf in der Laengsrichtung liegenden mehreren gleichgerichtet verlaufenden Einlagen aus Hartstahl
摘要
申请公布号
DE490283(C)
申请公布日期
1930.01.25
申请号
DE1928W023618D
申请日期
1928.02.28
申请人
VEREINIGTE STAHLWERKE AKT.-GES.
发明人
分类号
E01B5/10
主分类号
E01B5/10
代理机构
代理人
主权项
地址
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