Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1984-11-21
1985-12-03
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02816083
REFERENCES:
patent: D267879 (1983-02-01), Keely et al.
Chromatics.TM. Computer Co. Color Catalog, .COPYRGT.1979, front cover, Keyboard.
Computer Design, 11-1980, back cover, Ramtek Keyboard.
Lucas Susan J.
Northern Technologies Limited
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