RE

Raymond N. Elderfield

Overall (All Time): #2,363,360 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4398703 Tuyeres with heat pipes and method of manufacturing — 1983-08-16
4258633 Cooling of tuyeres in blast furnaces — 1981-03-31