OP

Otto E. Prenn

ST Stelco: 1 patents #10 of 37Top 30%
Overall (All Time): #3,929,894 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4838062 Process for upset forging of long stands of metal bar stock 1989-06-13