Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885980 | Hydrodynamic bearing | Benjamin Ziph | 1989-12-12 |
| 4836094 | Yieldably mounted lubricant control assemblies for piston rods | Benjamin Ziph | 1989-06-06 |
| 4825814 | Combination gas combuster and heat pipe evaporator device | — | 1989-05-02 |