Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4545292 | Roof ridge ventilation apparatus | Minoru Watanabe, Yoshiteru Miyasaka, Toshio Watanabe | 1985-10-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4545292 | Roof ridge ventilation apparatus | Minoru Watanabe, Yoshiteru Miyasaka, Toshio Watanabe | 1985-10-08 |