Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317983 | Setting the electron gun cathode heating current of an electron beam machine | Wilhelm Scheffels | 1982-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317983 | Setting the electron gun cathode heating current of an electron beam machine | Wilhelm Scheffels | 1982-03-02 |