Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856114 | Seaman style preset necktie | Ching-Hwa Chen | 1989-08-15 |
| 4835794 | Preset necktie | Ching-Hwa Chen | 1989-06-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856114 | Seaman style preset necktie | Ching-Hwa Chen | 1989-08-15 |
| 4835794 | Preset necktie | Ching-Hwa Chen | 1989-06-06 |