Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832809 | Process for preparation layered composite constructional material, especially for sliding and friction members | Erich Hodes | 1989-05-23 |
| 4830933 | Composite structural material with diffusion barrier layer, especially for slide and friction members, and method of manufacture | Erich Hodes | 1989-05-16 |