DIFF Subgroup
G11B 5/842 Coating a support with a liquid magnetic dispersion
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor > Processes or apparatus specially adapted for manufacturing record carriers > Coating a support with a liquid magnetic dispersion
CPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Processes or apparatus specially adapted for manufacturing record carriers > Coating a support with a liquid magnetic dispersion
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
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