ABSOLUTE ALTITUDE CALCULATION SYSTEM AND ABSOLUTE ALTITUDE CALCULATION METHOD FOR WORKER IN CONSTRUCTINO FILED
JANG, YONG GU, JEON, HEUNG SOO, DO, SEOUNG BOK, LEE, BO HYEONG, KIM, HYUN SOO, CHOI, HYUN YOUNG, KIM, KYOUNG MOOK, SHIN, JU HYUN, NA, KYOUNG HWAN
Year of Publication 06.08.2014
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Year of Publication 06.08.2014
Patent