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发明名称
RAILWAY SLEEPER
摘要
申请公布号
EP0412022(B1)
申请公布日期
1992.07.22
申请号
EP19900402245
申请日期
1990.08.06
申请人
POUGET, ROBERT
发明人
POUGET, ROBERT
分类号
E01B3/24;E01B3/36;E01B19/00
主分类号
E01B3/24
代理机构
代理人
主权项
地址
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