GD

George Ryckman, deceased

SL Service (Engineers) Limited: 2 patents #1 of 8Top 15%
📍 East Liverpool, OH: #14 of 49 inventorsTop 30%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,360,796 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4368021 Oval dish forming method and machine — 1983-01-11
4286938 Oval dish former — 1981-09-01