Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981396 | Multiple pipe installation backfilling, and compaction attachment | Arthur D. Deken, Freddie Nichols | 1991-01-01 |
| 4963075 | Radial diaphragm pump | Arthur D. Deken | 1990-10-16 |
| 4475604 | Mobile machine for subterranean installation of piping and the like | Arthur D. Deken | 1984-10-09 |