Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5546879 | Lint barrier for a sewing machine | John C. McEwen, David Tolzman | 1996-08-20 |
| 5454338 | Positive pressure lint barrier and oil cooler for a sewing machine | John C. McEwen, David Tolzman | 1995-10-03 |