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Priority to FI812949ApriorityCriticalpatent/FI67793C/en
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Publication of FI67793BpublicationCriticalpatent/FI67793B/en
Publication of FI67793CpublicationCriticalpatent/FI67793C/en
Measuring device and method for characterizing the quality of a flotation bed and its internal weather conditions by measuring the conductivity of both the foam and the liquid / sludge thereof