Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-06-25
1993-02-23
Shooman, Theodore M.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14121
Patent
active
D03334643
REFERENCES:
patent: D245418 (1977-08-01), Katayama et al.
patent: D290705 (1987-07-01), Yomo
patent: D311737 (1990-10-01), Westwood et al.
patent: D312081 (1990-11-01), Yukawa
patent: 4359762 (1982-11-01), Stollerz
patent: 4419703 (1983-12-01), Gruczelak et al.
Advertisement of "3M 3.5" floppy disk", undated.
Shooman Theodore M.
Teac Corporation
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