Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850226 | Interface circuit for use in an echo ranging system | C. Cameron Allen, Jr. | 1989-07-25 |
| 4798092 | Flowmeter for use in a flow monitoring system | David J. Roh | 1989-01-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850226 | Interface circuit for use in an echo ranging system | C. Cameron Allen, Jr. | 1989-07-25 |
| 4798092 | Flowmeter for use in a flow monitoring system | David J. Roh | 1989-01-17 |