BS

Bertil H. Sjoholm

📍 Ronneby, SE: #20 of 56 inventorsTop 40%
Overall (All Time): #2,362,221 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4383163 Method of manufacturing a heat exchange tube with internal surface enlarging elements — 1983-05-10
4241287 Apparatus for welding pins to a tube interior — 1980-12-23