robothut Posted May 30, 2010 Share Posted May 30, 2010 Patent applied for in 1982 and granted in 1985. TOPO's different wheel drive may have been influenced by Marvin Glass's 1964 toy called Smarty Bird! Link to comment Share on other sites More sharing options...
robothut Posted May 30, 2010 Author Share Posted May 30, 2010 more. Link to comment Share on other sites More sharing options...
robothut Posted May 30, 2010 Author Share Posted May 30, 2010 more. Link to comment Share on other sites More sharing options...
robothut Posted May 30, 2010 Author Share Posted May 30, 2010 more. Link to comment Share on other sites More sharing options...
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