On June 20th a patent was awarded to for RAM trucks to be designed with retractable truck bed ramps. They are stored in the truck bed and can be pulled out with adjustable width sliders. Seems to me very much like the ramp you pull out of the back of a UHAUL truck. I can see this as useful but only conditionally. Would you put a lawn tractor etc in the bed of your truck or use a trailer that is typically done now?
Here is a link to the patent
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9067525.PN.&OS=PN/9067525&RS=PN/9067525
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