Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-10-22
1991-02-05
Fay, Jr., Horace B.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03143740
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Ishizuka Hiroshi
Kimeda Tsuneji
Nishikado Iwamasa
Sasaki Yoshio
Fay Jr. Horace B.
Nippon Telegraph and Telephone Corporation
Nitsuko Limited
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