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经营范围
发明名称
Rail joint
摘要
申请公布号
US2201075(A)
申请公布日期
1940.05.14
申请号
US19380185995
申请日期
1938.01.20
申请人
NATHAN BROGDEN ALFRED
发明人
BROGDEN ALFRED NATHAN
分类号
E01B11/24
主分类号
E01B11/24
代理机构
代理人
主权项
地址
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