AE

Alfred Ernst

📍 Mettmann, DE: #3 of 12 inventorsTop 25%
Overall (1994): #159,004 of 165,921Top 100%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5309754 Hardness tester and method for measuring the hardness of metallic materials 1994-05-10