DIFF Subgroup
G11B 5/633 of cinematographic films or slides with integral magnetic track
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 > Record carriers characterised by the selection of the material > of cinematographic films or slides with integral magnetic track
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 > of cinematographic films or slides with integral magnetic track
No child classifications to compare. This is a leaf node in both IPC and CPC.