Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824373 | Swaged metal denture base | Yoshiaki Shida, Tomio Nishikawa, Isamu Kato, Kazuyuki Nakano, Ryozo Isomura | 1989-04-25 |
| 4794911 | Means to facilitate detachably mounting cap to distal end of endoscope | — | 1989-01-03 |