Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955133 | Method of making pulleys with plural V-shaped grooves | — | 1990-09-11 |
| 4697445 | Poly-V pulley formed of sheet metal and method and apparatus for making same | Yasuo Ohashi | 1987-10-06 |