Inventor

KODDENBERG THEO

DE3 patents

Patents

3 patents

US4168208ASep 18, 1979

Ascension pipe closure for coke oven batteries

OTTO & CO GMBH DR C15 citations62

US4382841AMay 10, 1983

Apparatus for operating offtake and main valves

OTTO & CO GMBH DR C4 citations58

US4564421AJan 14, 1986

Ascension pipe for coke ovens

OTTO & CO GMBH DR C5 citations51