Inventor

STARKMANN JOSEF

DE3 patents

Patents

3 patents

US7628232B2Dec 8, 2009

Rotary-percussion drill with a four-start helical shaft

HILTI AG10 citations79

US6450272B2Sep 17, 2002

Rock drill

HILTI AG11 citations71

US6116361ASep 12, 2000

Boring tool

HILTI AG13 citations71