Don Metcalf

📍 Mattoon, IL: #24 of 42 inventorsTop 60%

🗺 Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #2,892,706 of 4,157,543Top 70%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9987740	Vent manipulation system	—	2018-06-05