Inventor

GRAVE ROLAND

2 patents

Patents

2 patents

US4340208AJul 20, 1982

Refractory piece permeable to gases

SIDERURGIE FSE INST RECH22 citations73

US4348013ASep 7, 1982

Device of refractory porous material for blowing gas into a bath of liquid metal

SIDERURGIE FSE INST RECH4 citations57