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发明名称
Verfahren zur serienmäßigen Erzeugung von Schwellen für Eisenbahnen und Straßenbahnen
摘要
申请公布号
AT165905(B)
申请公布日期
1950.05.10
申请号
ATD165905
申请日期
1947.11.15
申请人
S. A. ETERNIT PIETRA ARTIFICIALE
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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