Input/output device for electronic memo

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

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D18 7

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D02986221

REFERENCES:
patent: D228137 (1973-08-01), Chadima, Jr.
patent: D258956 (1981-04-01), Chadima, Jr.
patent: D276242 (1984-11-01), Sakamoto
patent: D285806 (1986-09-01), Satake
patent: 4187912 (1980-02-01), Washizuka et al.
Retailing Home Furnishings, 5-28-79, p. 80, Toshiba Note Pad Calculator.
Popular Science, 7-1979, p. 22, Radio Shack Calculator.
Popular Science-7-1979, p. 22, Row B, right end, calculator.

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