Wall outlet alarm and chime
Wallet anti-theft device
Wallet capable of preventing loss of cards kept therein
Wallet guard
Wallet incorporating credit card alarm system
Wallet protection system
Wallet security device
Wallet with alarm device installed therein
Wallet with missing-card reminder
Wallpaper comprising an optical fibre
Wander alarm
Warning alarm device for an evaporative cooler
Warning and measuring device for personal protection in electrom
Warning apparatus
Warning apparatus against the coverlet out of position
Warning apparatus for a tracheotomy tube
Warning apparatus for a tracheotomy tube
Warning apparatus for an injection molding machine
Warning apparatus using microwaves
Warning apparatus with a line integrity supervisory circuit