LIQUID LEVEL INDICATION APPARATUS
Apparatus for indicating level of liquid in a recirculation type toilet or in other containers or tanks comprising an indicator lens which is free from any moving elements and indicates the level of the liquid by the application of the laws of light refraction.
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | Apparatus for indicating level of liquid in a recirculation type toilet or in other containers or tanks comprising an indicator lens which is free from any moving elements and indicates the level of the liquid by the application of the laws of light refraction. |
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