JP

John J. Purrett

XE Xermac: 1 patents #3 of 7Top 45%
📍 Troy, MI: #1,616 of 2,712 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,966,005 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4634827 Electrical discharge machining apparatus including gap condition detection circuitry Roland L. Syria, Eric David Jefferson 1987-01-06