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经营范围
发明名称
Locomotive throttle valve
摘要
申请公布号
US2443860(A)
申请公布日期
1948.06.22
申请号
US19470734724
申请日期
1947.03.14
申请人
JOHNSON ARTHUR O
发明人
JOHNSON ARTHUR O.
分类号
F01B25/00
主分类号
F01B25/00
代理机构
代理人
主权项
地址
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