Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1981-11-19
1984-04-03
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02732955
REFERENCES:
patent: 3789273 (1974-01-01), O'Brien
patent: 3899794 (1975-08-01), Brown, Jr.
North Star Computers, Inc., Catalog, 5-1980, p. 8, Hard Disk Drive.
Radio Shack TRS-80.TM. Microcomputer Catalog RSC-3, .COPYRGT.1979, p. 10, VOXBOX.TM. Housing.
Apple Computer Inc.
Lucas Susan J.
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