U.S. federal trademark · Serial No. 71513817 · Reg. No. 0503719
FLUID FLOW INDICATING AND RECORDING INSTRUMENTS; FLOW CONTROLLERS FOR AUTOMATICALLY MAINTAINING AT A PREDETERMINED GIVEN VALUE THE RATE OF FLOW OF A FLUID, OR THE RATIO OF FLOWS OF FLUIDS IN SEPARATE LINES, THE APPARATUS FUNCTIONING THROUGH COORDINATION IN A RECORDING INSTRUMENT OF A SETTING OF THE PREDETERMINED VALUE AND THE AIR PRESSURE IN A DIAPHRAGM VALVE REGULATOR; AND TOTALIZERS OR INTEGRATORS WHICH MEASURE OR COUNT THE TOTAL FLOW OF A FLUID IN A GIVEN PERIOD OF TIME BASED UPON VARIATIONS OF THE FLOW RATE DURING THAT TIME
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