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经营范围
发明名称
RAILWAY SWITCH APPARATUS
摘要
申请公布号
CA412142(A)
申请公布日期
1943.04.27
申请号
CAD412142
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
EDWIN G. LITTLE;WILLIAM C. MCWHIRTER
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主分类号
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代理人
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