Recording Or Reproducing Using A Method Not Covered By One Of The Main Groups G9b/3 To G9b/7; Record Carriers Therefor (g9b/11 Takes Precedence) [n: Driving Or Moving Of Heads G9b/21.003] {g11b 9/00} Patents (Class G9B/9)
- [N: Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers (processes involving a single technical art and for which provision exists elsewhere, see the relevant class, e.g. B05D, F16N, C08L)] {G11B 9/06R} (Class G9B/9.015)
- Heads for reproducing capacitive information {G11B 9/07} (Class G9B/9.022)