HH

Hardy R. Hallstrom

GO G. A. Serlachius Oy: 1 patents #3 of 5Top 60%
📍 Turku, FI: #452 of 846 inventorsTop 55%
Overall (All Time): #4,099,986 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4299107 Device for forming a collar around a hole in the wall of a pipe — 1981-11-10