Patent Class: Refrigeration (62/457.6)

This class includes (1) processes and apparatus peculiar toremoving heat from a substance, usually by a change of phase ofa coolant or refrigerant, as by evaporation, melting or sublimation,(2) the resultant product of part (1), e.g., ice, liquefied or solidifiedgases, and (3) processes and apparatus peculiar to handling thelatter as a stored product, not elsewhere provided for.