PTC has been awarded "Testing Apparatus Providing High Efficiency and High Accuracy" in ROC.
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PTC has been awarded "Image Display Device" in USA.
PTC has been awarded "Circuit for Generating Drive Voltage" in ROC.
PTC has been awarded "Audio Processing System" in ROC.
PTC has been awarded "Voice playing system" in PRC.
PTC has been awarded "Audio signal processing apparatus" in PRC.
PTC has been awarded "Audio processing systems" in PRC.
PTC has been awarded "Method for measuring transconductance" in PRC.
PTC has been awarded "Lamp brightness adjusted circuit" in PRC.
PTC has been awarded "Current generating circuit" in PRC.