Intermediate mediums, i.e. mediums provided with an information structure not specific to

Official title: {Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure (for record carriers with directly readable mechanical information G11B3/685); record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture}

G11B23/0057 (Intermediate mediums, i.e. mediums provided with an information structure not specific to) appears on 174 US grants and 44 published applications in this corpus.