Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875836 | Self-sucking pump apparatus for liquids | Paul Zehnder, Engelbert Schmiedl, Franz Patri | 1989-10-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875836 | Self-sucking pump apparatus for liquids | Paul Zehnder, Engelbert Schmiedl, Franz Patri | 1989-10-24 |