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发明名称
Train-control system
摘要
申请公布号
US1742617(A)
申请公布日期
1930.01.07
申请号
US19270168903
申请日期
1927.02.17
申请人
THE REGAN SAFETY DEVICES COMPANY, INC.
发明人
SHAVER ARCHIBALD G.;MEISEL BENJAMIN W.
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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