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Priority to JP1974122610UpriorityCriticalpatent/JPS5625431Y2/ja
Publication of JPS5149057UpublicationCriticalpatent/JPS5149057U/ja
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Publication of JPS5625431Y2publicationCriticalpatent/JPS5625431Y2/ja
Schaltungsanordnung zum ermitteln des vorhandenseins bzw. der entnahme von gegenstaenden, insbesondere von zahnaerztlichen behandlungsinstrumenten, in bzw. aus aufnahmen