A computerized trading system permits global currency trading. The system preferably includes multiple affiliates at the local level, each in a different country, that act as introducing agents. Between these local affiliates there is a global exchange or hub, with the local affiliates and the global...http://www.google.com.tw/patents/US20020087455?utm_source=gb-gplus-share專利 US20020087455 - Global foreign exchange system