Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824823 | Microcapsules containing oils and soluble color reaction components, their manufacture and use in color reaction recording systems | Karl-Heinz Schrader | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824823 | Microcapsules containing oils and soluble color reaction components, their manufacture and use in color reaction recording systems | Karl-Heinz Schrader | 1989-04-25 |