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发明名称
Rail brace
摘要
申请公布号
US2250891(A)
申请公布日期
1941.07.29
申请号
US19400356343
申请日期
1940.09.11
申请人
MORDEN FROG & CROSSING WORKS
发明人
MARTIN LYLE I.
分类号
E01B9/60
主分类号
E01B9/60
代理机构
代理人
主权项
地址
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