Inventor
SCHUMANN ERWIN
4 patents
Patents
4 patentsUS4682011AJul 21, 1987
Furnace for the partial heat treatment of work tools
DEGUSSA11 citations72
US3998441ADec 21, 1976
Furnace for tempering and hardening workpieces
DEGUSSA9 citations71
US4180697ADec 25, 1979
Vacuum oven with graphite heating
DEGUSSA7 citations63
US4636089AJan 13, 1987
Process and apparatus for the quenching intensity of liquid quenching batchs
DEGUSSA6 citations58