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发明名称
Improvements in or relating to differential-pressure regulating valve metering systems and methods
摘要
申请公布号
GB671588(A)
申请公布日期
1952.05.07
申请号
GB19500006903
申请日期
1950.03.20
申请人
NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ
发明人
HANNIBAL LESTER S.;TURNER JAMES R.
分类号
G05D7/01
主分类号
G05D7/01
代理机构
代理人
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