EZ

Erich Zeltner

VR Von Roll: 2 patents #5 of 48Top 15%
📍 Gockhausen, CH: #9 of 17 inventorsTop 55%
Overall (All Time): #2,371,047 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4279516 Container for pasteurizing sludge 1981-07-21
4276835 method for processing sewage sludge 1981-07-07