Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347699 | Exhaust cleaning fluid control system and vacuum control valve device for use therein | — | 1982-09-07 |
| 4328832 | Multiple throttle level orifice apparatus | Masami Inada, Shuji Okumura, Takao Nonoyama, Riichi Tsuji | 1982-05-11 |