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Class Information
Number: 73/861.45
Name: Measuring and testing > Volume or rate of flow > Using differential pressure > With time integration > By mechanical means
Description: Subject matter wherein the integration is performed mechanically.

Sub-classes under this class:

Class Number Class Name Patents
73/861.46 Including pressure applied to liquid column or reservoir 4

Patents under this class:

Patent Number Title Of Patent Date Issued
8468884 Motor controlled speed pipeline apparatus and method Jun. 25, 2013
8393227 Substrate processing method, storage medium storing program for executing the same, substrate processing apparatus, and fault detection method for differential pressure flowmeter Mar. 12, 2013

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