GPS data logger for recording trips and classifying them into different accounts; GPS navigation device; GPS tracking devices; Instruments for measuring length; Instruments for measuring milk quality parameters; Instruments for detecting and measuring two-dimensional distribution of force and pressure; Laser equipment designed for engraving and tinting optical lenses for eyeglasses; Laser equipment designed for cutting, drilling, marking, engraving and shaping optical lenses for eyeglasses; M...