2021
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Invention
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Led sign system with redundant controller. The present invention relates generally to an LED sign... |
2007
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G/S
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Video display monitors; large video display screens made of LED pixels; mobile video display uni... |
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G/S
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Video display monitors; large video display screens made of LED pixels; software for controlling ... |
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Invention
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Changeable message sign structure. A changeable message sign structure has a front panel assembly... |
2005
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G/S
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Software for controlling and managing LED based displays, signs, indicators, and illumination dev... |
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G/S
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Changeable solid state electronic light-emitting diode (LED) displays and parts and fittings for ... |
2004
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G/S
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Changeable solid state electronic light-emitting diode (LED) displays, and parts and fittings for... |
1995
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Invention
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Electromagnetically operated linearly sliding shutter for a variable display. An electromagnetica... |