Inventor

GROGER HANS

DE3 patents

Patents

3 patents

US4943120AJul 24, 1990

Force transmitting housing for longwall mining machine

EICKHOFF GEB11 citations68

US4236758ADec 2, 1980

Rack drive for a drum cutter mining machine

EICKHOFF GEB10 citations68

US4155599AMay 22, 1979

Drive gears for rack-driven mining machine

EICKHOFF GEB5 citations53