Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rudolf SiegelfiledCriticalRudolf Siegel
Publication of CH69385ApublicationCriticalpatent/CH69385A/en
CH69385A1914-07-241914-07-24
Device for reversing the conveying direction in centrifugal pumps without reversing the direction of rotation
CH69385A
(en)