Steering device for articulated vehicle Apple Patenthttp://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=9,409,599.PN.&OS=PN/9,409,599&RS=PN/9,409,599 by aetch • 10 years ago 1 0 10 years agoPApatft.uspto.gov