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经营范围
发明名称
Liquid level system
摘要
A liquid level system employs a bellows which is in flow communication with a differential pressure unit by a column of reference liquid. A float in the bellows carries a switch which energizes an alarm when liquid in the column is lost.
申请公布号
US4377809(A)
申请公布日期
1983.03.22
申请号
US19810257741
申请日期
1981.04.27
申请人
ITT
发明人
LAWFORD, VICTOR N.
分类号
G01F23/62;G01F23/14;(IPC1-7):G08B21/00
主分类号
G01F23/62
代理机构
代理人
主权项
地址
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