Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864829 | Method and apparatus for electronically pressure sealing and leak testing an idle centrifugal chiller system | Joshua D. Costell, Howard L. Beckerman | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864829 | Method and apparatus for electronically pressure sealing and leak testing an idle centrifugal chiller system | Joshua D. Costell, Howard L. Beckerman | 1989-09-12 |