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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Dukane Corp
Original Assignee
Dukane Corp
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Filing date
Publication date
Application filed by Dukane CorpfiledCriticalDukane Corp
Application grantedgrantedCritical
Publication of FR1147064ApublicationCriticalpatent/FR1147064A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
FR1147064D1955-12-211955-12-21Procédé et dispositif pour graver des bandes en matière plastique
ExpiredFR1147064A
(fr)