Digital telephone and data exchange equipment cabinet

- NEC Corporation
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Description

FIG. 1 is a front elevational view of a digital telephone and data exchange equipment cabinet showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a top, front and right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D234302 February 1975 Noyes
D246454 November 22, 1977 Ebner et al.
D272249 January 17, 1984 Stillinger et al.
D284187 June 10, 1986 Brown et al.
D288094 February 3, 1987 Davis et al.
D289397 April 21, 1987 Nuttall et al.
D290123 June 2, 1987 Kelley, Jr. et al.
2843806 July 1958 O'Neill
2959715 November 1960 Leonchick
3274451 September 1966 Laity
4247882 January 27, 1981 Prager et al.
Other references
  • NEC, PULSE General Description Publication, 1985. NEC NEWS Release, Dec. 1985, "NEC Telephones, Inc. Introduces Impulse--A Simultaneous Voice and Data PBX for Medium-Size Customers". Photograph of NEC Telephones' new Impulse System. NEC, "Trust Your Impulse", publication, 1986. "Private Automatic Branch Exchanges CDSS240", publication. ERIPOWER, For the Communication System of the Future MD 110, publication. "SX-200/200 SUPERSWITCH, The Most Compact Full Capability PABX in the World", publication, 1981, Mitel Corporation. "ITT 5500 BCS", publication. "The SL-1S Business Communication System: A New Standard of Communications Excellence for Businesses with 30-120 lines", publication. "PLC-1D-Integrated Multiplex System", publication, 9/83. "SONECOR System 2001", publication. "Discovery Electronic PABX", publication.
Patent History
Patent number: D293317
Type: Grant
Filed: Mar 12, 1986
Date of Patent: Dec 22, 1987
Assignee: NEC Corporation (Tokyo)
Inventors: Mitsuhiro Umezu (Tokyo), Tooru Nakajima (Tokyo), Hiroshi Kikkawa (Tokyo), Mamoru Miyazaki (Tokyo)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 6/842,890
Classifications
Current U.S. Class: D14/52; D14/102