Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349484 | Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates | Franz Merger, Gerhard Nestler, Friedrich Towae | 1982-09-14 |