DIFF Subgroup
G11B 5/133 with cores composed of particles, e.g. with dust cores, with ferrite cores
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 > Structure or manufacture of heads, e.g. inductive > with cores composed of particles, e.g. with dust cores, with ferrite cores
CPC:
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Structure or manufacture of heads, e.g. inductive > with cores composed of particles, e.g. with dust cores, with ferrite cores
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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