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经营范围
发明名称
Horn screen
摘要
申请公布号
US1910545(A)
申请公布日期
1933.05.23
申请号
US19310559923
申请日期
1931.08.28
申请人
THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
HEWITT ELLIS E.;MASTERMAN THOMAS W.
分类号
G10K9/22
主分类号
G10K9/22
代理机构
代理人
主权项
地址
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