DB

David F. Birch

📍 Minneapolis, MN: #111 of 392 inventorsTop 30%
🗺 Minnesota: #1,525 of 4,860 inventorsTop 35%
Overall (2003): #244,162 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6537071 Apparatus for automatically feeding and inserting members into braille signs Reuven Rahamim 2003-03-25