Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329499 | Alkyldiphenyl ether-sulphonic acid hydrazides, their preparation and their use as blowing agents | Knut Hammerstrom | 1982-05-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329499 | Alkyldiphenyl ether-sulphonic acid hydrazides, their preparation and their use as blowing agents | Knut Hammerstrom | 1982-05-11 |