Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D816456 | Gut hook bladed pipe slitter | Robert F. Crane, Mark D. Randa | 2018-05-01 |
| 9915109 | Slip style rod spinner for pipe bursting machine | Steven W. Wentworth, Robert F. Crane | 2018-03-13 |