David A. Ellington

📍 Grand Island, NE: #51 of 100 inventorsTop 55%

🗺 Nebraska: #2,834 of 5,697 inventorsTop 50%

Overall (All Time): #3,934,006 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4852661	Portable concrete hammer	—	1989-08-01