Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4237179 | Process for fireproofing cellulose-containing fiber material dyed with copper-complex azo dyes | Hans-Rudolf Frei | 1980-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4237179 | Process for fireproofing cellulose-containing fiber material dyed with copper-complex azo dyes | Hans-Rudolf Frei | 1980-12-02 |