Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397605 | Mechanized stand handling apparatus for drilling rigs | Frank J. Di Bella | 1983-08-09 |
| 4353476 | Paint applicator holder | — | 1982-10-12 |
| 4274778 | Mechanized stand handling apparatus for drilling rigs | Paul S. Putnam, Frank J. Di Bella | 1981-06-23 |