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发明名称
JUNCOES DE TRILHOS CONVENCIONAIS
摘要
申请公布号
BR5700948(U)
申请公布日期
1979.02.28
申请号
BR19770000948U
申请日期
1977.08.02
申请人
BROTTO N
发明人
BROTTO N
分类号
E01B5/08;(IPC1-7):E01B5/08
主分类号
E01B5/08
代理机构
代理人
主权项
地址
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