Frederick D. Lehman

CG Cpt Group Gmbh: 3 patents #1 of 69Top 2%

📍 Rockford, MN: #19 of 38 inventorsTop 50%

🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%

Overall (All Time): #1,684,406 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4353013	Drive circuits for a high resolutions cathode ray tube display	—	1982-10-05
4323826	Drive circuits for a high resolution cathode ray tube display	—	1982-04-06
4238774	Drive circuits for a high resolution cathode ray tube display	—	1980-12-09