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发明名称
Railway rail support
摘要
申请公布号
US2037315(A)
申请公布日期
1936.04.14
申请号
US19340738059
申请日期
1934.08.02
申请人
HARRY ETHERIDGE
发明人
ETHERIDGE HARRY
分类号
E01B3/24
主分类号
E01B3/24
代理机构
代理人
主权项
地址
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