ER

Elwin L. Rooy

AA Aluminum Company Of America: 1 patents #22 of 108Top 25%
📍 Whitehall, PA: #5 of 16 inventorsTop 35%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #117,089 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4818300 Method for making lithoplate Gerald R. Petrey, James R. Weaver, Douglas A. Granger, Raymond T. Richter, H. Gray Reavis, Jr. 1989-04-04