DF

Donald Firth

TO Tosco: 2 patents #1 of 4Top 25%
📍 East Kilbride, CA: #1 of 1 inventorsTop 100%
Overall (1982): #14,947 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4361333 Retort seal mechanism with integral bearings 1982-11-30
4353558 Hydrostatic retort seal 1982-10-12