| Original language | Korean |
|---|---|
| Patent number | 10-2057705 |
| Filing date | 31/01/18 |
| Publication status | Published - 13 Dec 2019 |
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| Original language | Korean |
|---|---|
| Patent number | 10-2057705 |
| Filing date | 31/01/18 |
| Publication status | Published - 13 Dec 2019 |