Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D319092 | Golf swing practice aid | — | 1991-08-13 |
| 4803922 | Transfer printing apparatus | — | 1989-02-14 |
| 4592277 | Drive for stencilling apparatus | Richard S. Wilson | 1986-06-03 |
| 4344807 | Spiral winding of filaments | Francis G. Dennesen | 1982-08-17 |