Patents https://patents.justia.com/patent/10106572 http://patft1.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=10106572.PN.&OS=PN/10106572&RS=PN/10106572 Share this:TwitterFacebookLike this:Like Loading...