CB

Charles W. Boelkins

📍 Grand Rapids, MI: #20 of 78 inventorsTop 30%
🗺 Michigan: #1,023 of 4,492 inventorsTop 25%
Overall (1997): #169,281 of 185,788Top 95%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5690738 Contact lubricator with metered supply — 1997-11-25