Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-04-01
1989-05-23
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03012336
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"Dialogos--An Aid for the Deaf-Blind," The Finnish Central Association of the Visually Handicapped, Oct. 21, 1984.
"Piezoelectric Braille Module," J. V. Pike--IBM Technical Disclosure Bulletin, vol. 19, No. 4, Sep. 1976.
Computer Weekly, May 11, 1978, p. 1-Personal Word Processor, top right corner.
British Telecommunications public limited company
Lucas Susan J.
Nunn Freda S.
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