PULLING UP STRUCTURE FOR INCLINED CLIMBING UP AND METHOD PULLING UP USING THE SAME
YANG, SUNG MAN, HWANG, JONG SOO, KIM, HEE HONG, CHO, NAM SO, PARK, KYUNG HO, SHIN, YOUN CHEAL
Year of Publication 16.01.2007
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Year of Publication 16.01.2007
Patent