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| Number | Title | Issue Date |
| 4775863 | Signal display element for the display of more, than two informations for signal displays with electromagnetically excited tilting plates A signal display element for the display of more than two informations with electromagnetically excited magnetic tilting plates supported in bearings on a baseplate (1 ) and displaced axially in relation to one another, provided with at least one magnetic... | 10/04/1988 |
| 4764768 | Signal display element for the display of more, than two informations for signal displays with electro-magnetically excited magnetic tilting plates A signal display element for the display of more than two informations by electromagnetically excited tilting plates supported in bearings on a baseplate (1) and containing magnetic parts and adapted to be rotated about an axis of rotation (3), wherein th... | 08/16/1988 |
| 4528932 | Iron core for the magnetic induction of a visual information displaying element with a magnetic tilting plate An iron core for the magnetic induction of a visual information displaying element with a magnetic flip plate, wherein the display element comprises one or more permanent-magnetic flip plates magnetized perpendicular to their face and suitable for the dir... | 07/16/1985 |
