Digital watch with fluorescent display and mercury coated crysta
Display assembly including two superposed display devices
Display clock
Display device
Display device and electronic timepiece
Display device and electronic timepiece
Display device and electronic watch
Display device for watches
Display means for chronometers with electro-optical elements
Double clock for daylight saving
Drive system for electrochromic display cell
Dual display watch
Dual illumination watch face, and associated methods
Dual plane EL panel
Dual time-indicative time piece
Dual-liquid ornament having exclusive magnetic floating body...