ENVIRONMENT-FRIENDLY FUEL SAVING DEVICE INTERWORKING WITH A MOBILE DEVICE AND ITS OPERATION METHOD
5G AI 5G-based AI outdoor advertisement analysis system
OCR Outdoor advertisement measuring equipment using OCR and operating system linked with it
AR GPS Outdoor advertisement measuring device using AR and GPS
SMALL DIAMETER LONG LENGTH LINER OF HYDROGEN STORAGE TANK
LINER OF SMALL-DIAMETER AND LONG-AXIS HYDROGEN STORAGE TANK AND MANUFACTURING METHOD THEREFOR