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Compound plastic plate, useful as a sound insulating element and/or as carriers of parts of optical pattern, comprises two parallel plates joined to one another by means of bridging pieces in interior of the compound plate
Compound plastic plate, useful as a sound insulating element and/or as carriers of parts of optical pattern, comprises two parallel plates joined to one another by means of bridging pieces in interior of the compound plate
The compound plastic plate (10) comprises at least two parallel plates (11, 12) joined to one another by means of bridging pieces (13, 14, 15) in the interior of the compound.
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