Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867095 | Differential pressure indicator | Bruce E. Shane, Keith D. Leady, Wayne L. Conner | 1989-09-19 |
| 4815493 | Cartridge bypass valve | Daniel W. Miller | 1989-03-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867095 | Differential pressure indicator | Bruce E. Shane, Keith D. Leady, Wayne L. Conner | 1989-09-19 |
| 4815493 | Cartridge bypass valve | Daniel W. Miller | 1989-03-28 |