Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7293763 | Retaining keeper assembly for a hoisting device | Ernest E. Lutter, Paul A. Boeckman | 2007-11-13 |
| 7255330 | Field adjustable bridge crane block | Ernest E. Lutter, Paul A. Boeckman | 2007-08-14 |
| 7000905 | Retaining keeper assembly for a hoisting device | Ernest E. Lutter, Paul A. Boeckman | 2006-02-21 |