Freons ® Freon Freon® http://inventors.about.com/library/inventors/blfreon.htm "Freon" "Freon" The first Freon patent was issued in 1928 Inventors Freon freon history of Freon Freon Freon Freon Freon Freon Freon Freon Inventors Freon freon Freon Freon this web page inte Freon - The History Of Freon - About.com Inventors Freon The first Freon patent was issued in 1928 inventors.about.com "Freon" Freon® Freon http://inventors.about.com/library/inventors/blfreon.htm freon this "Freon" Freon® freon The History of Freon �