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发明名称
CORACOES DE VIA FERREA
摘要
申请公布号
BR7800054(A)
申请公布日期
1978.10.10
申请号
BR19780000054
申请日期
1978.01.05
申请人
ABEX CORP
发明人
FRANK E
分类号
E01B7/12;(IPC1-7):E01B7/12
主分类号
E01B7/12
代理机构
代理人
主权项
地址
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