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经营范围
发明名称
Multiple valve
摘要
申请公布号
US2492280(A)
申请公布日期
1949.12.27
申请号
US19460643332
申请日期
1946.01.25
申请人
THE NEW YORK AIR BRAKE COMPANY
发明人
GROVES MARTIN VALENTINE
分类号
F16K15/02
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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