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发明名称
Rail brace
摘要
申请公布号
US1895193(A)
申请公布日期
1933.01.24
申请号
US19320616338
申请日期
1932.06.09
申请人
WILLIAM KOCH;MACK ROGERS
发明人
KOCH WILLIAM;ROGERS MACK
分类号
E01B5/16
主分类号
E01B5/16
代理机构
代理人
主权项
地址
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