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2977990
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Information
Patent Grant
2977990
References
Source
Patent Number
2,977,990
Date Filed
Not available
Date Issued
Tuesday, April 4, 1961
63 years ago
CPC
G01L13/023 - using bellows
G01F1/38 - the pressure or differential pressure being measured by means of a movable element
G01L7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
G01L7/063 - with mechanical transmitting or indicating means
G01L7/068 - correcting or regulating means for bellows
US Classifications
092 - Expansible chamber devices
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