Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640623 | Wireless flash photographing system in which light emission control of a slave flash apparatus, situated away from a camera, is effected by a light signal from a master flash apparatus provided on the camera side | — | 1997-06-17 |