G - Physics – 11 – B
Patent
G - Physics
11
B
352/53.4
G11B 3/78 (2006.01) G06K 1/12 (2006.01) G06K 19/08 (2006.01) G11B 20/14 (2006.01)
Patent
CA 1091806
PRECIS DE LA DIVULGATION: Procédé de codage magnétique caractérisé par la super- position d'un premier message binaire ineffaçable à fréquence donnée et d'un message binaire à fréquence double en phase spatiale. Application aux cartes de crédit à piste magnétique.
299700
Robic Robic & Associes/associates
Transac - Compagnie Pour Le Developpement Des Transactions Autom
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