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经营范围
发明名称
Pneumatic horn
摘要
申请公布号
US2173951(A)
申请公布日期
1939.09.26
申请号
US19370156449
申请日期
1937.07.30
申请人
THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
PATTERSON DAVID
分类号
G10K9/04
主分类号
G10K9/04
代理机构
代理人
主权项
地址
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