Screening (insulation or other protection of buildings E04B; emergency protection of apparatus in general F16P7/00; in connection with acoustic waves G10K11/00; in connection with nuclear radiation G21F)

Child Classifications

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• G12B 17/02 from electric or magnetic fields, e.g. radio waves
• G12B 17/04 from visible, ultraviolet, or infrared light (screening of lighting devices F21V; optical filters G02B5/20)
• G12B 17/06 from heat (G12B17/04 takes precedence; cooling G12B15/00)
• G12B 17/08 from influences producing mechanical damage, e.g. caused by blast, by external objects, by person (G12B17/02 - G12B17/06 take precedence)