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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SAfiledCriticalAteliers de Constructions Electriques de Charleroi SA
Application grantedgrantedCritical
Publication of FR932101ApublicationCriticalpatent/FR932101A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/62—Record carriers characterised by the selection of the material
G11B5/633—Record carriers characterised by the selection of the material of cinematographic films or slides with integral magnetic track
FR932101D1946-08-091946-08-09Perfectionnement à l'enregistrement des vibrations sonores sur les films cinématographiques sonores ou parlants
ExpiredFR932101A
(fr)