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Patent applications and USPTO patent grants for HAN OCEAN CO., LTD.The latest application filed is for "lost sand collecting apparatus for preventing coastal erosion".
Patent | Date |
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Lost sand collecting apparatus for preventing coastal erosion Grant 10,557,238 - Lee Feb | 2020-02-11 |
Lost Sand Collecting Apparatus For Preventing Coastal Erosion App 20190112770 - Lee; Gwang Soo | 2019-04-18 |
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