Matias A. Virta

Follow

Person

Tornio, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Electric furnace dome
- Patent number 4,491,952
- Issue date Jan 1, 1985
- Outokumpu Oy
- Matti Honkaniemi
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Ferrochromium slag for uses requiring refractoriness and mechanical...
- Patent number 4,222,786
- Issue date Sep 16, 1980
- Outokumpu Oy
- Frans H. Tuovinen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES