Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809693 | Tracheal intubation cannula with external valve | Roberto Rangoni, Dante Cavalli, Walter Cavalli | 1989-03-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809693 | Tracheal intubation cannula with external valve | Roberto Rangoni, Dante Cavalli, Walter Cavalli | 1989-03-07 |