ES457874A1 - Improvements introduced into an information storage environment. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements introduced into an information storage environment. (Machine-translation by Google Translate, not legally binding)
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
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Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES457874A1publicationCriticalpatent/ES457874A1/en
Perfections introduced into an information storage medium, characterized in that said means comprises: a base (5) having two faces, an information layer (6) disposed on at least one of the faces of the base and protective means (7) transparent to the reading and/or writing beam of information attached to a portion of the base and covering a main portion of the information layer. (Machine-translation by Google Translate, not legally binding)
ES457874A1975-09-231977-04-15Improvements introduced into an information storage environment. (Machine-translation by Google Translate, not legally binding)
ExpiredES457874A1
(en)
Method of writing information with a modulated radiation beam onto an information storage medium and information storage medium particularly adapted to the method