FT

Friedrich Theysohn

Overall (All Time): #2,366,376 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4364664 Dual worm extruder having wear resistant bore walls — 1982-12-21
4327859 Method of coating dual-worm extruder bores — 1982-05-04