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经营范围
发明名称
Control valve
摘要
申请公布号
US3145730(A)
申请公布日期
1964.08.25
申请号
US19630263537
申请日期
1963.03.07
申请人
PRESNELL FRANK G
发明人
PRESNELL FRANK G.
分类号
G05D7/01
主分类号
G05D7/01
代理机构
代理人
主权项
地址
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