DH

David U. Hillstrom

MD Marketing Displays: 2 patents #1 of 1Top 100%
📍 Novi, MI: #3 of 21 inventorsTop 15%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #29,544 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4862615 Releasable anchoring and tensioning apparatus for billboard displays — 1989-09-05
4823533 Structural cladding apparatus — 1989-04-25