Inventor
HOERETH HANS-JUERGEN
DE4 patents
Patents
4 patentsUS4691929ASep 8, 1987
Drill bit chuck for drilling and cutting devices
HILTI AG87 citations95
US4732218AMar 22, 1988
Hammer drill with separate and interconnectable drive means
HILTI AG42 citations91
US4825961AMay 2, 1989
Drilling device
HILTI AG19 citations72
US4798249AJan 17, 1989
Lockable striking mechanism for hammer drill
HILTI AG19 citations72