8 ms·

http://www.google.com/patents?id=DlttAAAAEBAJ&zoom=4&pg=PA2#v=onepage&q&f=false http://www.google.com/patents?id=DlttAAAAEBAJ&zoom=4&#38... It appears that's a

by kwis 15y ago

http://www.google.com/patents?id=DlttAAAAEBAJ&zoom=4&pg=PA2#v=onepage&q&f=false http://www.google.com/patents?id=DlttAAAAEBAJ&zoom=4&#38... It appears that's allowable now, since the patent has expired.