BURKS
TURBINE PUMPS, WATER PUMPS, CENTRIFUGAL PUMPS, CENTRIFUGAL EDUCER DEEP WELL SYSTEMS, TURBINE EDUCER DEEP WELL SYSTEMS, AND PARTS THEREOF; AND WATER SYSTEMS COMPRISING A PUMPING UNIT, STORAGE TANK, AND PIPING THEREFOR; BOILER FEED UNITS, COMPRISING A PUMPING UNIT, SUPPLY TANK, FLOAT CONTROLLED MAKE-UP VALVE, AND PIPING THEREFOR; AND CONDENSATION RETURN UNITS, COMPRISING A PUMPING UNIT, SUPPLY TANK, FLOAT CONTROLLED SWITCH, AND PIPING THEREFOR, SOLD AS UNITS
Expired · October 7, 1947 · 71537020 ·