HS

Harold Simpson

AP Ashland Products: 2 patents #1 of 1Top 100%
📍 Chicago, IL: #29 of 382 inventorsTop 8%
🗺 Illinois: #289 of 3,813 inventorsTop 8%
Overall (1989): #26,466 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4837975 Externally mounted latch for slidable sash window — 1989-06-13
4824154 Security lock for double-hung window — 1989-04-25