List 충격흡수 구조체 및 충격흡수 구조체 제작방법 (Shock absorbing structure and making methods for shock absorbing structure) Authors 조민호, 장승혁, 연규범, 이승조, 이나영, 옥종걸 Journal KR patent Vol 10-2019-0076380 Year Patents Link https://doi.org/10.8080/1020190076380 published on Jan 7, 2021.