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.)
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Radio Gramophone Development Co Ltd
Original Assignee
Radio Gramophone Development Co Ltd
Filing date
Publication date
Application filed by Radio Gramophone Development Co LtdfiledCriticalRadio Gramophone Development Co Ltd
Application grantedgrantedCritical
Publication of AU147902B2publicationCriticalpatent/AU147902B2/en
Publication of AU2704749ApublicationCriticalpatent/AU2704749A/en
AU27047/49A1949-04-14Improvements in apparatus forthe magnetic recording and reproducing of sound by means ofa travelling tape or wire
ExpiredAU147902B2
(en)