Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851707 | """Fritting"" technique and apparatus for improving the sound of switches and connectors in audio circuits" | — | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851707 | """Fritting"" technique and apparatus for improving the sound of switches and connectors in audio circuits" | — | 1989-07-25 |