JM

John R. MacGregor

RA Raycon: 2 patents #5 of 17Top 30%
Overall (All Time): #2,352,747 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4510365 Electronic depth controller for EDM apparatus Gary F. Rupert, Thomas M. Kennedy 1985-04-09
4361745 Process control for electrical discharge machining apparatus Gary F. Rupert, Thomas M. Kennedy 1982-11-30