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经营范围
发明名称
Train control apparatus
摘要
申请公布号
US1932026(A)
申请公布日期
1933.10.24
申请号
US19320596970
申请日期
1932.03.05
申请人
MABLE M. THOMAS;THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
分类号
B61L3/22
主分类号
B61L3/22
代理机构
代理人
主权项
地址
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