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发明名称
Train control apparatus
摘要
申请公布号
US1832327(A)
申请公布日期
1931.11.17
申请号
US19290395682
申请日期
1929.09.27
申请人
HERBERT SCHWEYER DANIEL
发明人
SCHWEYER DANIEL HERBERT
分类号
B61L3/12
主分类号
B61L3/12
代理机构
代理人
主权项
地址
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