Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825555 | Apparatus for automatic forming on a film material of both a mask film pattern and a positioning hole | Takaharu Yamamoto, Takeji Hashimoto | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825555 | Apparatus for automatic forming on a film material of both a mask film pattern and a positioning hole | Takaharu Yamamoto, Takeji Hashimoto | 1989-05-02 |