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| 2001 | Building stewart mac |
| 2001 | Building MARTIN-D28 |
| 2002 | Building MARTIN-OOO18 |
| 2002 | ｕｋｕｌｅｌｅ |
| 2002 | 簡単ｕｋｕｌｅｌｅ ｓｔａｎｄ |
| 2002 | side bending machine |
| 2002 | harp kit |
| 2003 | Building LMI |
| 2003 | concert ukulele |
| 2003 | thickness caliper |
| 2004 | building laminate 000 |
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