DH

David Harry

📍 Niles, MI: #2 of 5 inventorsTop 40%
🗺 Michigan: #1,023 of 4,492 inventorsTop 25%
Overall (1997): #163,390 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5597477 Sewage effluent disposal system having sparger in holding tank — 1997-01-28