Inventor
LILJEKVIST BERNT S
7 patents
⚠️ This page may combine multiple inventors who share the name “LILJEKVIST BERNT S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANTRADE LTD
5 patentsUS4598779AJul 8, 1986
Rock drill bit
SANTRADE LTD51 citations86
US4760887AAug 2, 1988
Drill element for percussion drilling
SANTRADE LTD26 citations85
US4441565AApr 10, 1984
Guiding device for percussion drills
SANTRADE LTD11 citations71
US4399879AAug 23, 1983
Boring head
SANTRADE LTD14 citations71
US4805705AFeb 21, 1989
Drill bit
SANTRADE LTD16 citations70