Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6986538 | Device for storing and carrying hole saws | — | 2006-01-17 |
| 6786684 | Tubular hole cutter | — | 2004-09-07 |
| 5660064 | Double-locking mechanism for handcuffs | Paul W. Koetsch | 1997-08-26 |
| 5598723 | Hinge assembly for handcuffs | Paul W. Koetsch | 1997-02-04 |
| 5246317 | Quick-release arbor for hole saws | Paul W. Koetsch | 1993-09-21 |
| 5226762 | Sealed hole-saw arbor | — | 1993-07-13 |