DH

Don M. Houlberg

📍 Port Washington, WI: #1 of 4 inventorsTop 25%
🗺 Wisconsin: #44 of 927 inventorsTop 5%
Overall (1982): #14,930 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4326613 Solenoid activated spring clutch 1982-04-27
4324010 Drive unit for adjustable beds Larry D. Anderson, Frank M. Damico 1982-04-13