LD

Laverne R. Durfee

IT Irwin Industrial Tool: 4 patents #2 of 33Top 7%
📍 Statesville, NC: #1 of 12 inventorsTop 9%
🗺 North Carolina: #236 of 4,532 inventorsTop 6%
Overall (2011): #25,079 of 364,097Top 7%
4
Patents 2011

Issued Patents 2011

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8070397 Self feed bit — 2011-12-06
8070398 Multi-blade self feed bit — 2011-12-06
7922429 Spade bit — 2011-04-12
7905690 Spade bit — 2011-03-15