Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1982-10-13
1985-02-05
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02774844
REFERENCES:
Radio Shack.RTM. TRS-80 Microcomputer Catalog .COPYRGT.1981, p. 46, Videotex Terminal.
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