Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1979-03-12
1981-12-15
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D1402
Patent
active
D02622874
REFERENCES:
patent: D237906 (1975-12-01), Hagstrom et al.
patent: 3296369 (1967-01-01), Clark et al.
Datamation, 7-1976, p. 156, Microprocessor-Floppy Disk System.
Hanson Robert L.
Urbanus David S.
Digital Equipment Corporation
Kotulak Richard M.
Lucas Susan J.
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