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发明名称
IRONNREINFORCED CONCRETE RAILROAD TIE
摘要
申请公布号
JPS5273403(A)
申请公布日期
1977.06.20
申请号
JP19750148256
申请日期
1975.12.11
申请人
FUKUDA MICHIO
发明人
FUKUDA MICHIO
分类号
E01B3/32
主分类号
E01B3/32
代理机构
代理人
主权项
地址
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