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经营范围
发明名称
Railway switch operating apparatus
摘要
申请公布号
US2337636(A)
申请公布日期
1943.12.28
申请号
US19420427448
申请日期
1942.01.20
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
BONE HERBERT L;LITTLE EDWIN G.
分类号
B61L5/06
主分类号
B61L5/06
代理机构
代理人
主权项
地址
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