One of my favorite @Jack @Square patents. Surprised at embodiments not used.
US Patent Application: 0120095871 http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=44&f=G&l=50&co1=AND&d=PG01&s1=%22Dorsey,+Jack%22&OS=%22Dorsey,+Jack%22&RS=%22Dorsey,+Jack%22 …
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