Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Einrichtung zum Messen des Vorrates an Fluessigkeit oder festen Stoffen in einem Behaelter durch Ermittlung der durch eine bestimmte Volumenaenderung des Leerraumes des Behaelters in diesem hervorgerufenen Druckaenderung
Speech and data communication equipment with multiple threshold memory - selects appropriate appts. for message reception by comparison of incoming signal with threshold level recognised by computer