Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889908 | Polyethers and their use as mold release agents for plastics | Joachim Franke, Helmut Kipphardt | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889908 | Polyethers and their use as mold release agents for plastics | Joachim Franke, Helmut Kipphardt | 1989-12-26 |