Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869097 | Sonic gas pressure gauge | Bernhard R. Tittmann, James R. Bulau, Lawrence R. Bivins | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869097 | Sonic gas pressure gauge | Bernhard R. Tittmann, James R. Bulau, Lawrence R. Bivins | 1989-09-26 |