RW

Robert J. Whelchel

EE Elevator Equipment: 1 patents #4 of 5Top 80%
Overall (All Time): #4,068,292 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE30902 Pressure and temperature compensating hydraulic valve William A. P. Lawrence 1982-04-13