Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829831 | Device for measuring flow rate in a pipe | Volker Kefer, Werner Kratzer | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829831 | Device for measuring flow rate in a pipe | Volker Kefer, Werner Kratzer | 1989-05-16 |