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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES249126A2publicationCriticalpatent/ES249126A2/es
Improvements in or relating to transducing devices for recording or scanning a groove - like record track in which two signals are reocreded simultaneously with different directions of vibration
Improvements in or relating to transducing devices for recording or scanning two signals of different oscillation directions in or froma groove-shaped recording track
Improvements in or relating to transducing devices for recording or scanning two signals of different oscillation directions in or froma groove-shaped recording track