Patent US3329502 - ABSORPTION OF INCIDENT RADIATION

Patents

Inventors: Edwin Fisher Ullman, Edwin Fisher Ullman
Current U.S. Classification: 430/338; 252/586; 252/600; 430/962; 549/518; 549/546

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Citing Patent	Filing date	Issue date	Original Assignee	Title
US3964823	18 Mar 1974	22 Jun 1976	Bell Telephone Laboratories, Incorporated	Articles employing photochromic materials
US3984177	29 Dec 1975	5 Oct 1976	Bell Telephone Laboratories, Incorporated	Articles employing photochromic materials
US7381506	8 Sep 2005	3 Jun 2008	Xerox Corporation	Reimageable paper