DR

Donald R. Rigsby

BI Benteler Industries: 1 patents #1 of 3Top 35%
📍 Jenison, MI: #2 of 9 inventorsTop 25%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #119,077 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4798076 Nipple forming apparatus James R. Dehlinger, David A. Passmore 1989-01-17