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发明名称
Dallage en dalles de béton pour voie ferrée posée sur traverse en béton
摘要
申请公布号
FR1311045(A)
申请公布日期
1962.11.30
申请号
FR19620885323
申请日期
1962.01.19
申请人
N. V. BETONFABRIEK
发明人
分类号
E01B3/40
主分类号
E01B3/40
代理机构
代理人
主权项
地址
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