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发明名称
Traverse pour voies ferrées, en particulier pour voies de chemin de fer
摘要
申请公布号
FR836980(A)
申请公布日期
1939.01.31
申请号
FRD836980
申请日期
1938.04.22
申请人
发明人
BASELER WOLFGANG;ZANGL HEINRICH;DIETRICH JAKOB
分类号
E01B3/10
主分类号
E01B3/10
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代理人
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地址
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