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Class Information
Number: 73/861.46
Name: Measuring and testing > Volume or rate of flow > Using differential pressure > With time integration > By mechanical means > Including pressure applied to liquid column or reservoir
Description: Subject matter wherein a liquid column or reservoir is subjected to the pressure to be measured and the subsequent change in level is sensed and utilized as an input to the integration means.










Patents under this class:

Patent Number Title Of Patent Date Issued
6898339 Multiple mode pre-loadable fiber optic pressure and temperature sensor May. 24, 2005
6666081 Sensor probe Dec. 23, 2003
6571605 Constant-head soil permeameter for determining the hydraulic conductivity of earthen materials Jun. 3, 2003
5515734 Variable area flow meter May. 14, 1996











 
 
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