Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865472 | Double row roller bearing | — | 1989-09-12 |
| 4856917 | Device for the synchronous guidance of a roller bearing cage for a roller bearing executing swivel motion | Horst Schroder, Klaus Kispert, Robert Stolz | 1989-08-15 |
| 4834560 | Plural ring bearing having at least two radially superimposed bearings | Paul-Gerhard Hoch | 1989-05-30 |