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发明名称
Nouveau système de circulation ferroviaire à voie unique
摘要
申请公布号
FR968810(A)
申请公布日期
1950.12.06
申请号
FRD968810
申请日期
1948.07.01
申请人
发明人
RUFFENACH CHARLES
分类号
B61B13/00
主分类号
B61B13/00
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