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发明名称
TRANSITION CURVE PLOTTERS FOR ROADS, RAILWAYS AND OTHER PURPOSES
摘要
申请公布号
CA481301(A)
申请公布日期
1952.02.26
申请号
CAD481301
申请日期
申请人
FRANCIS THOMAS MURRAY
发明人
FRANCIS THOMAS MURRAY
分类号
主分类号
代理机构
代理人
主权项
地址
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