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发明名称
Jonction pour rails de voies ferrées
摘要
申请公布号
FR995302(A)
申请公布日期
1951.11.30
申请号
FRD995302
申请日期
1949.09.15
申请人
发明人
VIVIANI ALBINO
分类号
E01B11/26
主分类号
E01B11/26
代理机构
代理人
主权项
地址
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