Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4589518 | Revolving block for high place working vehicle | Naoyuki Murai, Masayoshi Yamasaki | 1986-05-20 |
| 4523685 | Revolving block for high place working vehicle | Fusaji Terayama, Naoyuki Murai | 1985-06-18 |