Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869638 | Aerial bundle puller | Richard W. Krajicek | 1989-09-26 |
| 4856545 | Multi-lange tube bundle cleaner | Richard W. Krajicek | 1989-08-15 |
| 4817653 | Tank cleaning, water washing robot | Richard W. Krajicek | 1989-04-04 |
| 4805653 | Mobile articulatable tube bundle cleaner | Richard W. Krajicek | 1989-02-21 |