Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1984-06-11
1986-07-22
Largen, James R.
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D14 56, D14 61
Patent
active
D02847639
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patent: 4511761 (1985-04-01), Yamazaki
Fay Horace B.
Jelly Sidney T.
Largen James R.
Northern Telecom Limited
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