Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5907613 | Telephone silencing system | — | 1999-05-25 |
| 4300135 | Seismic alarm system | Erik D. Goodman, Charles R. MacCluer | 1981-11-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5907613 | Telephone silencing system | — | 1999-05-25 |
| 4300135 | Seismic alarm system | Erik D. Goodman, Charles R. MacCluer | 1981-11-10 |