| Original language | Japanese |
|---|---|
| Patent number | 特許第6338051号 |
| Filing date | 2014/03/31 |
| State | Published - 2018/06/06 |
背負いカバン用背面パッドとそれを取り付けたランドセル
Masanori Kawahara (Inventor)
Research output: Industrial property › Patent
Masanori Kawahara (Inventor)
Research output: Industrial property › Patent
| Original language | Japanese |
|---|---|
| Patent number | 特許第6338051号 |
| Filing date | 2014/03/31 |
| State | Published - 2018/06/06 |