Telephone line and trunk status display

- Mitel Corporation
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Description

FIG. 1 is a perspective view of a telephone line and trunk status display showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a cross-sectional view, on an enlarged scale, taken along line 7--7 of FIG. 3.

Referenced Cited
U.S. Patent Documents
D251843 May 15, 1979 Knoll
D256918 September 16, 1980 White
4286124 August 25, 1981 Guttmann
4291198 September 22, 1981 Anderson et al.
4304966 December 8, 1981 Berin et al.
Other references
  • Telephony, Jan. 1, 1979, p. 30, GTE-60 PABX with Display.
Patent History
Patent number: D268265
Type: Grant
Filed: Nov 3, 1980
Date of Patent: Mar 15, 1983
Assignee: Mitel Corporation (Kanata)
Inventor: J. Scott Gibson (Ottawa)
Primary Examiner: Bernard Ansher
Attorney: Alan H. Levine
Application Number: 6/203,768
Classifications
Current U.S. Class: D14/58
International Classification: D1403;