Combined control device and display unit for telephone exchange

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Description

FIG. 1 is a top front perspective view of a combined control device and display unit for a telephone exchange;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear perspective view thereof; and

FIG. 4 is a rear perspective view of the control device, shown separately for clarity of illustration.

Referenced Cited
U.S. Patent Documents
D202555 October 1965 Meunier
D259933 July 21, 1981 Foggia et al.
D265314 July 6, 1982 Kitai
D266762 November 2, 1982 Gibson
Other references
  • Telephony, Jan. 1, 1979, p. 30, GTE-60 PBX with display.
Patent History
Patent number: D273109
Type: Grant
Filed: Jan 7, 1981
Date of Patent: Mar 20, 1984
Assignee: Telefonaktiebolaget L M Ericsson (Stockholm)
Inventor: Carl-Arne Breger (Stockholm)
Primary Examiner: Bernard Ansher
Law Firm: Hane, Roberts, Spiecens & Cohen
Application Number: 6/223,218
Classifications
Current U.S. Class: D14/58; D14/52; D14/100; D14/113