HK

Harry L. Karlsson

SA Sandvik Ab: 2 patents #252 of 518Top 50%
AS Aktiebolaget Skf: 1 patents #798 of 1,598Top 50%
SA Santrade: 1 patents #61 of 173Top 40%
📍 Sandviken, SE: #77 of 247 inventorsTop 35%
Overall (All Time): #1,664,246 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5005989 Roller bit — 1991-04-09
4516640 Rotary drill bit — 1985-05-14
4399878 Lubricating device Lars G. Norlander 1983-08-23