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AT85104880T1984-05-041985-04-22Duennschicht-magnetkopf mit einem doppelspalt fuer ein senkrecht zur magnetisierendes aufzeichnungsmedium.
ATE39303T1
(de)
Composto de ester de fosforato,processo para preparar o composto de ester de fosforato,meio de gravacao magnetica,e,processo para preparar um meio de gravacao magnetica de pigmento/aglutinante