Intercommunication unit

- Sharp Corporation
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Description

FIG. 1 is a front elevational view of the intercommunication unit showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image thereof;

FIG. 4 is a plan view thereof; and

FIG. 5 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D232226 July 1974 Bee et al.
D238186 December 1975 Kramer et al.
D247174 February 7, 1978 Janda
D269432 June 21, 1983 Kowalik et al.
D274518 July 3, 1984 Doodson
D275753 October 2, 1984 Mahan
D277098 January 8, 1985 Mark
D277282 January 22, 1985 Barton et al.
3916103 October 1975 Morrell et al.
Foreign Patent Documents
2305488 August 1974 DEX
Other references
  • Telesis, vol. 3, No. 3, Fall 1973-article showing on p. 83 the new "Companion" hands-free phone set. Article re GTE Type 883A Residential "Speakerphone", Mar. 1977, pp. 275-279; view on p. 276. RadioShack 1981 Cat. No. 328 .COPYRGT.1980; "Duofone"TAD-15 on p. 94.
Patent History
Patent number: D282360
Type: Grant
Filed: May 25, 1983
Date of Patent: Jan 28, 1986
Assignee: Sharp Corporation (Osaka)
Inventors: Hiroshi Yamagata (Osaka), Kendo Makihara (Osaka)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Law Firm: Flehr, Hohbach, Test, Albritton & Herbert
Application Number: 6/497,876
Classifications
Current U.S. Class: D14/59; D14/92; D14/62; D14/60; D14/52