Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856107 | Acoustic filter for suppressing or attenuating the negative half-waves of an elastic wave and an elastic wave generator comprising such a filter | — | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856107 | Acoustic filter for suppressing or attenuating the negative half-waves of an elastic wave and an elastic wave generator comprising such a filter | — | 1989-08-08 |