Inventor

ELSNER BURCKHARDT

4 patents

Patents

4 patents

US4526495AJul 2, 1985

Mine roof support assembly

GEWERK EISENHUETTE WESTFALIA12 citations71

US4048804ASep 20, 1977

Support assemblies for use in mine workings

GEWERK EISENHUETTE WESTFALIA13 citations71

US4075857AFeb 28, 1978

Shield-type support assemblies for mine workings

GEWERK EISENHUETTE WESTFALIA4 citations60

US4347021AAug 31, 1982

Mine roof supports

GEWERK EISENHUETTE WESTFALIA5 citations58