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发明名称
Verfahren zur Herstellung von eisernen Bahnschwellen mit Erhebungen, insbesondere Querrippen.
摘要
申请公布号
AT139078(B)
申请公布日期
1934.10.25
申请号
ATD139078
申请日期
1933.11.18
申请人
VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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地址
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