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经营范围
发明名称
Railway braking apparatus
摘要
申请公布号
US1927201(A)
申请公布日期
1933.09.19
申请号
US19310516883
申请日期
1931.02.19
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
BONE HERBERT L.
分类号
B61K7/08
主分类号
B61K7/08
代理机构
代理人
主权项
地址
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