Inventor
VISSEL FRIEDRICH
DE2 patents
Patents
2 patentsUS4384792AMay 24, 1983
Process and apparatus for the combustionless measurement and/or control of the amount of heat fed to gas consumption devices
RUHRGAS AG54 citations88
US4802142AJan 31, 1989
Device for controlling the flow rate of a fuel gas/air mixture and/or the ratio between fuel gas and air in a fuel gas/air mixture
RUHRGAS AG5 citations58