U.S. federal trademark · Serial No. 71488615 · Reg. No. 0420758
SCREW CONVEYOR UNITS COMPRISING A HOUSING AND A HOLLOW HELICAL SCREW THROUGH WHICH A LIQUID OR GAS MAY BE PASSED THEREBY HEATING OR COOLING A MASS BEING MOVED THROUGH THE HOUSING BY THE SCREW
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.