Conference telephone microphone control unit

- AT&T

FIG. 1 is a front, top and left side perspective view of a conference telephone microphone control unit showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D188663 August 1960 Montague
D202561 October 1965 Adams
D226487 March 1973 Genaro et al.
D263139 February 23, 1982 Petrie et al.
D263466 March 23, 1982 Hiraki
D269088 May 24, 1983 Genaro et al.
Patent History
Patent number: D277282
Type: Grant
Filed: Mar 17, 1982
Date of Patent: Jan 22, 1985
Assignee: AT&T Bell Laboratories (Murray Hill, NJ)
Inventors: William L. Barton, III (Holmdel, NJ), Edward J. Peterson (Eatontown, NJ), Gordon E. Sylvester (Jamaica, NY)
Primary Examiner: Jane E. Corrigan
Attorney: S. R. Williamson
Application Number: 6/358,915
Current U.S. Class: D14/59; D14/12