LJ

Leroy W. Janson

AC Acker Drill Co.: 1 patents #2 of 5Top 40%
📍 Clarks Summit, PA: #1 of 4 inventorsTop 25%
🗺 Pennsylvania: #852 of 3,759 inventorsTop 25%
Overall (1989): #83,974 of 140,708Top 60%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4844184 Lock device for hollow stem augers William L. Acker, III, Richard Pirrami 1989-07-04