Referenced by|
| US4069480 | Jan 3, 1977 | Jan 17, 1978 | Ferranti-Packard Limited | Blanking circuit for electromagnetic display | | US4199237 | Oct 27, 1977 | Apr 22, 1980 | Polaroid Corporation | Low scene brightness indicator for use in a photographic camera | | US4273396 | May 9, 1979 | Jun 16, 1981 | T.I.C. - Citizen Co., Ltd. | Display unit | | US4774509 | Aug 13, 1986 | Sep 27, 1988 | ASEA Aktiebolag | Reset device for indicator | | US5111193 | Jun 6, 1990 | May 5, 1992 | American On-Premise Advertising Company | Electronic display element for electronic display device | | US5148156 | Jun 6, 1990 | Sep 15, 1992 | American Electronic Sign Company | Electronic display device having a plurality of pixel elements | | US6677922 | Oct 12, 2000 | Jan 13, 2004 | 3M Innovative Properties Company | Display element having retroreflective surface |
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