Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808136 | Mercury retention structure for introduction of measured amounts of mercury into a lamp and method of making the retention structure | — | 1989-02-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808136 | Mercury retention structure for introduction of measured amounts of mercury into a lamp and method of making the retention structure | — | 1989-02-28 |