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
G11B5/127—Structure or manufacture of heads, e.g. inductive
G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
Procede de fabrication de chevilles destinees a l'ancrage dans le sol, en particulier de poteaux ou piquets, et chevilles obtenues au moyen dudit procede.
Tete magnetique pour ecriture, lecture et effacement sur piste magnetique etroite, et procede de fabrication de cette tete magnetique, simple ou multipiste