German | English | |
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Patent | ||
Patent | mittels Adsorptionsmittel | by means of adsorbents |
German | English | |
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Patent | ||
Patent | Schönen mittels Adsorptionsmittel | shading by means of adsorbent |
Patent | Schönen mittels Adsorptionsmittel | shading by means of adsorbing agent |