Inventor

FREI ARNO

CH3 patents

Patents

3 patents

US4190104AFeb 26, 1980

Heat exchanger having helically wound tube coils

SULZER AG20 citations77

US5228836AJul 20, 1993

Runner for a pump

SULZER AG10 citations70

US4262515AApr 21, 1981

Method and apparatus for bending a tube

SULZER AG8 citations68