Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1984-05-24
1987-05-19
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02898748
REFERENCES:
patent: 4138703 (1979-02-01), Stave et al.
Catalogue of Hitachi Maxell Optical Disk Cartridge.
Hara Kunio
Sutoh Shigeru
Kabushiki Kaisha Toshiba
Lucas Susan J.
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