Method of copying magnetic recordings provided on a magnetizable

Details Method of copying magnetic recordings provided on a magnetizable Method of copying magnetic recordings provided on a magnetizable

1974-04-18

1976-09-21

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

G11B 586

Patent

active

039822761

ABSTRACT:
A method of copying magnetic information from a master tape on a slave by contacting the tapes with each other in a magnetic field. In order to be able to make copies on high-coercive copy tapes, a master tape is used on which information can be recorded in a low-coercive condition and can be used for copying in a high-coercive condition.

REFERENCES:
patent: 2738383 (1956-03-01), Herr et al.
patent: 3465105 (1969-09-01), Kumada et al.

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