Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371404 | Interlocking bobbin halves | David Glen Christopherson, Barry E. Powell | 2002-04-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371404 | Interlocking bobbin halves | David Glen Christopherson, Barry E. Powell | 2002-04-16 |