Transient optical state change materials useful in copy-protected compact discs

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Title: Transient optical state change materials useful in copy-protected compact discs
Date: 2008
Citation: Selingfreund, R. H., Gerger, S., Vig, R., & Li, J. (2008). Transient optical state change materials useful in copy-protected compact discs. U.S. Patent No. 7,344,823. Washington, DC: U.S. Patent and Trademark Office.
URI: http://www.lib.ncsu.edu/resolver/1840.2/1834


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