Key telephone set

Details Key telephone set Key telephone set

1983-12-01

1986-04-22

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 58, D14 62, D14 60

Patent

active

D02835088

REFERENCES:
patent: D207091 (1982-11-01), Ohno
patent: D269674 (1983-07-01), Hirota et al.
patent: D275751 (1984-10-01), Mohan
patent: D278533 (1985-04-01), Ando
patent: D280404 (1985-09-01), Inaba
Telephony, Jul. 10, 1983; p. 162, "Businesscom".TM. by TIE.RTM..

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