Provided is a mobile telephone handset having a cartridge with a universal pen arrangement, said cartridge for supplying ink to a printhead mounted on a nib of the pen arrangement. The universal pen arrangement includes a holder fast with the cartridge, and a retractable stylus slidably mounted in the...http://www.google.com.hk/patents/US7894095?utm_source=gb-gplus-share專利 US7894095 - Mobile telephone handset having a cartridge and pen arrangement
