A user interface and method are disclosed for providing trading between a plurality of semi-fungible and non-fungible goods. A plurality of book axes are displayed in a single interface, each book axis representing a market for a particular good. Orders for goods are displayed as marks on the axes to...http://www.google.com.tw/patents/US7584144?utm_source=gb-gplus-share專利 US7584144 - User interface for semi-fungible trading
