Antimicrobial compositions containing synergistic combinations of quaternary ammonium compounds and essential oils and/or constituents thereof

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A device for automatically sterilizing toothbrushes when the toothbrushes are not in use. A germicidal lamp and toothbrushes are held within an apertured casing which is mounted on a vertical wall. A dial selector allows one of a plurality of toothbrushes to be aligned with the aperture for removal and replacement of toothbrushes from the casing. Electrical circuitry is provided to act as a switch for the lamp. The lamp is energized only when the aperture is blocked to thereby prevent the potentially dangerous \"short\" ultraviolet rays emitted by the lamp to escape from the casing.

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