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  • is Usa Inc.Tobacco cut filler including metal oxide supported particlesUS79972813 Feb 201016 Ago 2011Philip Morris Usa Inc.Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxidesUS800670325 Oct 200430 Ago 2011Philip Morris Usa Inc.In situ synthesis of composite nanoscale particlesUS801137424 Nov 20096 Sep 2011P
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