Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840998 | Modified polytetrafluoroethylene fine powder and production of the same | Tetsuo Shimizu | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840998 | Modified polytetrafluoroethylene fine powder and production of the same | Tetsuo Shimizu | 1989-06-20 |