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发明名称
Perfectionnement aux dispositifs de soulèvement des voies ferrées
摘要
申请公布号
FR1529605(A)
申请公布日期
1968.06.21
申请号
FR19660087602
申请日期
1966.12.15
申请人
发明人
BOYER JEAN-JACQUES
分类号
E01B29/04
主分类号
E01B29/04
代理机构
代理人
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