DH

Donald W. Harrington

UN Unknown: 1 patents #206 of 2,107Top 10%
📍 Waldoboro, ME: #1 of 2 inventorsTop 50%
🗺 Maine: #36 of 198 inventorsTop 20%
Overall (1997): #158,375 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5702129 Riser assembly for underground pipe connections — 1997-12-30