Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329073 | Sound absorbing device for sound insulation wall | Yutaka Shono, Masahito Watanabe, Kohei Yamamoto | 1994-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329073 | Sound absorbing device for sound insulation wall | Yutaka Shono, Masahito Watanabe, Kohei Yamamoto | 1994-07-12 |