Patent-2020 A knee pad skateboard device for protecting human knees March 24, 2025 By RDing 0 comments Continue reading
Patent-2020 Infrared thermometer for cell phones (002) March 24, 2025 By RDing 0 comments Continue reading
Patent-2020 Infrared thermometer for cell phones (001) March 24, 2025 By RDing 0 comments Continue reading
Patent-2020 A kind of cell phone infrared thermometer March 24, 2025 By RDing 0 comments Continue reading
Patent-2020 An Internet-based Temperature, Humidity and Voltage Measurement and Control System March 24, 2025 By RDing 0 comments Continue reading
