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发明名称
Rail bond
摘要
申请公布号
US2237698(A)
申请公布日期
1941.04.08
申请号
US19380232154
申请日期
1938.09.28
申请人
THE ELECTRIC RAILWAY IMPROVEMENT COMPANY
发明人
CARLSON NOBLE G.
分类号
B60M5/00
主分类号
B60M5/00
代理机构
代理人
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地址
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