Gradient fabrication to direct transport on a surface

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Title: Gradient fabrication to direct transport on a surface
Date: 2005
Citation: Gorman, C. B., Feldheim, D. L., & Fuierer, R. R. (2005). Gradient fabrication to direct transport on a surface. U.S. Patent No. 6,972,155. Washington, DC: U.S. Patent and Trademark Office.
URI: http://www.lib.ncsu.edu/resolver/1840.2/1136


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