Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869102 | Method and apparatus for remote monitoring of valves and valve operators | Stanley N. Hale, Thomas A. Rak, Duane H. Rowicki | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869102 | Method and apparatus for remote monitoring of valves and valve operators | Stanley N. Hale, Thomas A. Rak, Duane H. Rowicki | 1989-09-26 |