Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327149 | Extruded rigid thermoplastic sheet having optically smooth surfaces | Keishiro Hiraga, Junji Seki, Makoto Suzuki | 1982-04-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327149 | Extruded rigid thermoplastic sheet having optically smooth surfaces | Keishiro Hiraga, Junji Seki, Makoto Suzuki | 1982-04-27 |