INDOOR ENVIRONMENT IMPROVING METHOD AND EARTH ELECTRODE DEVICE

PROBLEM TO BE SOLVED: To keep an indoor environment rich in negative ions and stably keep the environment, rich in the negative ions, at a higher level, by maintaining the effectiveness of charcoal, when an indoor wall surface is coated with a paint containing charcoal powder, in a method for improv...

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Bibliographische Detailangaben
1. Verfasser: YOSHIMATSU MICHIHARU
Format: Patent
Sprache:eng
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