Occupancy sensor and method of operating same

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Title: Occupancy sensor and method of operating same
Date: 1997
Citation: Myron, D. D., Williams, E. R., Hardin, C. C., Woytek, T. W., & Stephens, M. A. (1997). Occupancy sensor and method of operating same. U.S. Patent No. 5,640,143. Washington, DC: U.S. Patent and Trademark Office.
URI: http://www.lib.ncsu.edu/resolver/1840.2/1625


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