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发明名称
RAILWAY BRAKING APPARATUS
摘要
申请公布号
CA392085(A)
申请公布日期
1940.10.22
申请号
CAD392085
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
HAROLD C. CLAUSEN
分类号
主分类号
代理机构
代理人
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