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Application filed by Siemens AgfiledCriticalSiemens Ag
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Publication of AT174224BpublicationCriticalpatent/AT174224B/en
Method for recording sound, in particular music performances for the purpose of electrical transmission to sound reproducers, sound preserves, radio and television stations
Method for recording sound, in particular music performances for the purpose of electrical transmission to sound reproducers, sound preserves, radio and television stations