Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813066 | Battery feed circuit for a telephone system | Roger Edward Holtz | 1989-03-14 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813066 | Battery feed circuit for a telephone system | Roger Edward Holtz | 1989-03-14 |