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Norman Day

PC Phoenixtec Power Co.: 1 patents #4 of 20Top 20%
Overall (All Time): #3,435,059 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7141892 Power supply method of a line interactive UPS and the line interactive UPS Guo-Feng Dai 2006-11-28