Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867527 | Combined electrical power and optical fiber cable | Giorgio Grasso, Gianmario Lanfranconi | 1989-09-19 |
| 4842438 | Method for joining plastic cores with spaced surface grooves and joint so obtained | Bruno Bortolin | 1989-06-27 |