Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841144 | Dust-proof tube having a cylindrical portion that seals photosensor and integrally formed frustrum portion | Kouichi Goi, Daiki Sato | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841144 | Dust-proof tube having a cylindrical portion that seals photosensor and integrally formed frustrum portion | Kouichi Goi, Daiki Sato | 1989-06-20 |