Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4866422 | Security alarm system | Roy V. Dunnett, Frederick C. Grigg | 1989-09-12 | $248,000 |
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Skip to contentShowing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4866422 | Security alarm system | Roy V. Dunnett, Frederick C. Grigg | 1989-09-12 | $248,000 |