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Matthew J. Blackford

DI D B Industries: 1 patents #5 of 9Top 60%
📍 Hastings, MN: #10 of 21 inventorsTop 50%
🗺 Minnesota: #1,999 of 5,843 inventorsTop 35%
Overall (2011): #230,588 of 364,097Top 65%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7946387 Self-retracting lifeline Travis P. Betcher 2011-05-24