Record carriers characterised by their structure or form or by the selection

Official title: {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)}

G11B9/061 (Record carriers characterised by their structure or form or by the selection) appears on 79 US grants and 23 published applications in this corpus.