An improved skateboard having a replaceable arc-tail with a wear surface and further having wheel wells. Each end of the improved skateboard may have the arc-tail with the inwardly directed angular wear surface for enabling the operator to perform a variety of new tricks. In addition, each end of the...http://www.google.co.uk/patents/US4161326?utm_source=gb-gplus-sharePatent US4161326 - Skateboard
