| 摘要 |
<p>The metal catch of the wrist watch with metal strap has engraved on it, the blood group and rhesus factor of the wearer, with the initials SOS. the metal fastener to the watch can withstand fire, car accident and other fatalities, and for this purpose hjas a double base onto which a lid flaps down. The cavity between the double bottom contains a strip of material which is impervious to water. The strip of material has recorded on it information which is important for a doctor to know in case of emergency, such as illnesses to which the wearer is subject (such as diabetes), allergies and inoculations.</p> |
