Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300806 | Clock | — | 1989-04-25 |
| 4821760 | Voice coil assembly for an electropneumatic converter | Christine B. Barnes, Frank E. Nardis | 1989-04-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300806 | Clock | — | 1989-04-25 |
| 4821760 | Voice coil assembly for an electropneumatic converter | Christine B. Barnes, Frank E. Nardis | 1989-04-18 |