Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1978-11-17
1981-03-24
Kemper, Catherine E.
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D18 7, D1402, D1801
Patent
active
D02586550
REFERENCES:
patent: D227481 (1973-06-01), Kennedy
patent: D247623 (1978-03-01), Pulvers
patent: D249511 (1978-09-01), Olson
patent: 3973113 (1976-08-01), Goldsamt
Kemper Catherine E.
Lexicon Corporation
Malley John W.
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