Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4305311 | Crankshaft construction | — | 1981-12-15 |
| 4187059 | Valve guide for poppet valve | Curtis J. Parker | 1980-02-05 |
| 4184814 | Valve guide for poppet valve | Curtis J. Parker | 1980-01-22 |