Inventor
BEMMERL HANS-FERDINAND
9 patents
⚠️ This page may combine multiple inventors who share the name “BEMMERL HANS-FERDINAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BOCHUMER EISEN HEINTZMANN
8 patentsUS4309130AJan 5, 1982
Mine roof support
BOCHUMER EISEN HEINTZMANN12 citations71
US4140430AFeb 20, 1979
Walking mine roof support
BOCHUMER EISEN HEINTZMANN10 citations71
US4028898AJun 14, 1977
Pit prop assembly
BOCHUMER EISEN HEINTZMANN7 citations71
US3992888ANov 23, 1976
Hydraulic pit prop
BOCHUMER EISEN HEINTZMANN4 citations60
US4094155AJun 13, 1978
Mine roof support
BOCHUMER EISEN HEINTZMANN1 citations49
US4065931AJan 3, 1978
Guiding arrangement for underground excavating systems
BOCHUMER EISEN HEINTZMANN1 citations48
US4487531ADec 11, 1984
Travelling bracket
BOCHUMER EISEN HEINTZMANN0 citations47
US4755083AJul 5, 1988
Adjustable cap unit
BOCHUMER EISEN HEINTZMANN0 citations37