The unit consists of a central screw having adjustment discs located on it, whose rotational movement can be converted into a straight, perpendicular or angled movement via rotationally secured base plates and attachment plates.
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Transport container for goods - is assembled from equally-sized plates acting as floor, wall and cover plates and which can be laid flat on each other for storage and transport
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Folder having a multicoloured jacket, method for its production and apparatus for implementing the method
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Overhead projector with selected image reversal - has reflecting insert and flip back lamp housing
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Projection and drawing table - has lamps on tilting arms on sliding mounting
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Compact projector for slides - has two angled mirrors with adjustable spacing from projector
