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发明名称
Perfectionnements à la construction des bifurcations et croisements des voies de chemin de fer et de tramway
摘要
申请公布号
FR873279(A)
申请公布日期
1942.07.03
申请号
FRD873279
申请日期
1941.06.23
申请人
发明人
TREPAT JUAN MIRO
分类号
E01B7/30
主分类号
E01B7/30
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代理人
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