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发明名称
Système de commande semi-automatique des aiguilles des faisceaux de triage
摘要
申请公布号
FR724663(A)
申请公布日期
1932.04.30
申请号
FRD724663
申请日期
1931.08.12
申请人
发明人
PONS PAUL-HENRI
分类号
B61L17/00
主分类号
B61L17/00
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