Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888517 | Double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope | William M. Keeffe, Robert J. Karlotski, Simone P. Bazin | 1989-12-19 |