CF

Charles W. Frost

KI Kimball Industries: 2 patents #2 of 4Top 50%
CE Clark Equipment: 1 patents #215 of 416Top 55%
📍 Lisbon, ND: #11 of 30 inventorsTop 40%
🗺 North Dakota: #595 of 2,395 inventorsTop 25%
Overall (All Time): #1,667,848 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4927119 Reversible flow valve for air isolated bases 1990-05-22
4603587 High productivity vibration test fixture suited for testing printed circuit boards David V. Kimball 1986-08-05
4417649 Arrangement for the brake system of a hydrostatic loader including a valve port block 1983-11-29