Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-03-14
1988-11-22
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 7
Patent
active
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.
Saimen Tadahiko
Sakaguchi Hiroshi
Yubisui Takahisa
Lucas Susan J.
Sharp Corporation
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