A personal security device is disclosed which includes, in combination, a smoke detection and smoke alarm system, a radio, a digital time clock, a compass, a high intensity lamp, and a retractable writing table. The writing table is disposed below the lamp beam to facilitate use of the table in a darkened...http://www.google.fr/patents/US4949077?utm_source=gb-gplus-shareBrevet US4949077 - Portable unit with smoke alarm, clock radio, compass, retractable table, and lamp
Portable unit with smoke alarm, clock radio, compass, retractable table, and ...
