Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9995566 | Eyeline sighting device and related methods | — | 2018-06-12 |
| 4469983 | Electric lamp with an envelope seal designed as pinch seal, and a device and method for its manufacture | Helmut Grahmann, Dieter Hofmann | 1984-09-04 |