Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980956 | Sleeve and sleeve-type flexible shaft coupling | John W. Black, Arthur Jack Clarke | 2011-07-19 |
| 7658678 | Pronged sleeve-type flexible shaft coupling | John W. Black, Arthur Jack Clarke | 2010-02-09 |