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发明名称
Outil pour machines à dégarnir le ballast sous les voies de chemins de fer
摘要
申请公布号
FR1030117(A)
申请公布日期
1953.06.10
申请号
FRD1030117
申请日期
1950.12.26
申请人
发明人
DROUARD JACQUES;BOULARD GEORGES
分类号
E01B27/04
主分类号
E01B27/04
代理机构
代理人
主权项
地址
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