DIFF Subgroup
G11B 5/62 Record carriers characterised by the selection of the material
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor > Record carriers characterised by the selection of the material
CPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Record carriers characterised by the selection of the material
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G11B 5/627 of leaders for magnetic tapes, e.g. non-magnetic strips on the tapes or for connection since 1985 IPC+CPC Available in IPC and CPC
- G11B 5/633 of cinematographic films or slides with integral magnetic track since 1985 IPC+CPC Available in IPC and CPC
- G11B 5/64 comprising only the magnetic material without bonding agent +1 CPC IPC+CPC Available in IPC and CPC
- G11B 5/68 comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent IPC+CPC Available in IPC and CPC