Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861659 | High tenacity acrylonitrile fibers and a process for production thereof | Kenichi Hirao, Hiroyoshi Tanaka, Mitsuo Suzuki | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861659 | High tenacity acrylonitrile fibers and a process for production thereof | Kenichi Hirao, Hiroyoshi Tanaka, Mitsuo Suzuki | 1989-08-29 |