DIFF Subgroup
H04N 5/78 using magnetic recording (H04N5/91 takes precedence )
Introduced: September 1968
Title
Titles differ between systems:
IPC: using magnetic recording
CPC: using magnetic recording (H04N5/91 takes precedence )
Full Title
Full titles differ between systems:
IPC:
Details of television systems > Television signal recording > using magnetic recording
CPC:
Details of television systems (scanning details or combination thereof with generation of supply voltages H04N3/00) > Television signal recording > using magnetic recording (H04N5/91 takes precedence )
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
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