Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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5/00
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
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G11B5/008
Recording on, or reproducing or erasing from, magnetic tapes,; sheets, e.g. cards,; or wires
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