NOISE REDUCTION DEVICE HAVING WATER ELIMINATING FUNCTION AND BLOWER COMPRISING THE SAME
Geodetic Surveying System Based on Geophysical Mapping
3 SYSTEM FOR MEASURING THREE DIMENSIONS POSITION OF UNDERGROUND CONSTRUCTION
Doors for elevators having fireproofing glass windlows
OCR Outdoor advertisement measuring equipment using OCR and operating system linked with it
Doors for elevators having fireproofing glass windlows supported by molding
AR GPS Outdoor advertisement measuring device using AR and GPS
5G AI 5G-based AI outdoor advertisement analysis system
SIGNAL NOTIFICATION DEVICE USING OPTICAL TRANSMISSION
shock absorbing structure and making methods for shock absorbing structure