Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317453 | Method and apparatus for testing a person's breath for the determination of its alcohol content | Ulrich Heim | 1982-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317453 | Method and apparatus for testing a person's breath for the determination of its alcohol content | Ulrich Heim | 1982-03-02 |