Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877992 | Electric lamp having conductors with means formed therein for removing contact surface material | — | 1989-10-31 |
| 4837479 | Electric lamp with insulating base | Richard Dolan, John A. Bergin | 1989-06-06 |