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经营范围
发明名称
FRICTION SPRING FOR RAILWA
摘要
申请公布号
CA389613(A)
申请公布日期
1940.06.25
申请号
CAD389613
申请日期
申请人
THE FROST RAILWAY SUPPLY CO.
发明人
LOUIS EUGENE ENDSLEY
分类号
主分类号
代理机构
代理人
主权项
地址
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