Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213304 | Valve | — | 1993-05-25 |
| 4830045 | Breaker valve | Itsu Itoh, Mitsuru Urashima | 1989-05-16 |
| 4676271 | Valve capable of bidirectional flow | — | 1987-06-30 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213304 | Valve | — | 1993-05-25 |
| 4830045 | Breaker valve | Itsu Itoh, Mitsuru Urashima | 1989-05-16 |
| 4676271 | Valve capable of bidirectional flow | — | 1987-06-30 |