Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349747 | Sound response time switch for flowing current for a predetermined period of time | — | 1982-09-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349747 | Sound response time switch for flowing current for a predetermined period of time | — | 1982-09-14 |