Inventor
BELL ROBERT J
US13 patents
⚠️ This page may combine multiple inventors who share the name “BELL ROBERT J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIGMATRON NOVA INC
2 patentsUS4559535ADec 17, 1985
System for displaying information with multiple shades of a color on a thin-film EL matrix display panel
SIGMATRON NOVA INC116 citations92
US4570151AFeb 11, 1986
Speedometer display of simulated analog needle and odometer on electroluminescent panel
SIGMATRON NOVA INC13 citations69