Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342213 | Closed chamber extrusion method and apparatus for shaping of metal rod into tulip-shaped part | Shoju Ishii | 1982-08-03 |
| 4287747 | Process of closed extrusion shaping of a metal rod material and an apparatus therefor | Shohju Ishii | 1981-09-08 |