Phase difference measurement system
Title: | Phase difference measurement system |
Date: | 1987 |
Citation: | Gehkre, T. E. (1987). Phase difference measurement system. U.S. Patent No. 4,675,614. Washington, DC: U.S. Patent and Trademark Office. |
URI: | http://www.lib.ncsu.edu/resolver/1840.2/1507 |
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