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 Ericsson Telefon Ab L MfiledCriticalEricsson Telefon Ab L M
Application grantedgrantedCritical
Publication of DK89017CpublicationCriticalpatent/DK89017C/da
DK378557A1956-12-061957-11-08Dæmpningsanordning ved vekselstrømskredse til undertrykkelse af grundfrekvente og underfrekvente svingninger.
DK89017C
(da)