DS

Darrell E. Sims

📍 Alpena, MI: #20 of 61 inventorsTop 35%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,321,488 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4898504 Key cutting machine Frank P. Agius 1990-02-06
4533284 Adjustable drill mount Frank P. Agius 1985-08-06