Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1984-05-04
1986-08-26
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02853051
REFERENCES:
patent: D275755 (1984-10-01), Cottrill et al.
patent: D275937 (1984-10-01), Lederman
patent: D280408 (1985-09-01), Kuba
patent: 3927752 (1975-12-01), Jones et al.
patent: 4333097 (1982-06-01), Buric et al.
patent: 4455607 (1984-06-01), Watson et al.
patent: 4455618 (1984-06-01), Walden et al.
Computer Design, 10-1982, p. 72, Microswitch Keyboard.
The Office, 6-1980, p. 112, A. B. Dick's Magna SL Word Processing System Keyboard.
Two advertisements from Datamation, Mar. 1984:. Ericsson, Alfastop, pp. 196-197; AT&T Teletype Corporation, 5620, back cover.
Brochure on Datapoint 8600 Series Processors, Datapoint Corporation.
R. Ahmari et al., "Automated Coin Toll Service: Softare" The Bell System Technical Journal, Figure 4, p. 1258, vol. 58, Part 1 of 2, Jul.-Aug., 1979.
Liuzzo James G.
Proetta William J.
Sylvester Gordon E.
Tilley Alvin R.
AT&T Bell Laboratories
Lucas Susan J.
Ulrich Werner
Visserman Peter
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