Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221565 | Process and apparatus for machine washing and cleaning with low-phosphate or phosphate-free washing solutions | Heinz Oberlack, Hermann-Josef Welling | 1980-09-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221565 | Process and apparatus for machine washing and cleaning with low-phosphate or phosphate-free washing solutions | Heinz Oberlack, Hermann-Josef Welling | 1980-09-09 |