Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004118 | Valve polarization means, for a fluid-working machine structure | — | 1999-12-21 |
| 5339856 | Valve retainer means, a method of forming the same, and a method of valve insertion therewith | — | 1994-08-23 |
| 5238019 | Hold-down assemblage for a gas compressor valve assembly | Ronald Beyer | 1993-08-24 |