Artikelrobot
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A new development in RF shielding could spell regulatory problems for the FCC. This, after a Rochester, New York, company called Natural Nano announces that it has developed paint that can switch between blocking cell phone signals and allowing them through
http://www.southgatearc.org/news/march2006/cellphone_blocking_paint.htm
http://www.southgatearc.org/news/march2006/cellphone_blocking_paint.htm