Phase difference measurement system

Show simple item record 2008-10-14T20:32:40Z 2008-10-14T20:32:40Z 1987
dc.identifier.citation Gehkre, T. E. (1987). Phase difference measurement system. U.S. Patent No. 4,675,614. Washington, DC: U.S. Patent and Trademark Office.
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dc.language.iso en
dc.title Phase difference measurement system
dc.type Patent

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