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发明名称
Valve control system
摘要
申请公布号
US2252125(A)
申请公布日期
1941.08.12
申请号
US19390274069
申请日期
1939.05.16
申请人
FRED HAUSER
发明人
HAUSER FRED
分类号
A01G25/16;F16K31/12
主分类号
A01G25/16
代理机构
代理人
主权项
地址
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