Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870326 | Method and apparatus for driving neon tube to form luminous bubbles and controlling the movement thereof | Mark E. Andresen | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870326 | Method and apparatus for driving neon tube to form luminous bubbles and controlling the movement thereof | Mark E. Andresen | 1989-09-26 |