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Title: Gas Measurement By Rotary Meters
Author: W. K. Clark
Source: 1979 International School of Hydrocarbon Measurement
Year Published: 1979
Abstract: The f i r s t rotary positive displacement gas meters were b u i l t about 1920 by the PH & FM Roots Company and the Connersville Blower Company, both located in Connersville, Indiana. The two companies later joined to form Roots-Connersville Blower, and in 1966 the gas meter operation was renamed Dresser Measurement Division. The rotary gas meters manufactured by Dresser Measurement are known as ROOTS Meters.