Inventor
RISSE FRIEDRICH
DE3 patents
Patents
3 patentsUS4416409ANov 22, 1983
Method for manufacturing a metal casing for gate valves used in nuclear reactors and the like
THYSSEN INDUSTRIE4 citations57
US4349948ASep 21, 1982
Method for manufacturing metal casings for accessories and particularly gate valves
THYSSEN INDUSTRIE6 citations57
US4319736AMar 16, 1982
Apparatus and method for manufacturing a metal casing particularly for gate valves used in nuclear reactors and the like, having a large nominal width and a casing manufactured in accordance with the method
THYSSEN INDUSTRIE5 citations57