Issued Patents All Time
Showing 476–477 of 477 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4206249 | Process for producing a paper container having high impermeability to liquid | Hisao Okada | 1980-06-03 |
| 4187768 | Method for the manufacture of a paper container | — | 1980-02-12 |