Digital communication switching exchange

Description

FIG. 1 is a front perspective view of a digital communication switching exchange showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 6 is a rear elevational view thereof.

The louvers on the front of the design are partially shown in FIGS. 1 and 4 for convenience of illustration, it being understood that the louvers continue across the rectangular panels. The design is shaded to indicate contrast.

Claims

The ornamental design for a digital communication switching exchange, substantially as shown and described.

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Inventors:	Heldenbrand; Stanley W. (San Jose, CA), Brown; Michael (Nepean, CA)
Assignee:	Northern Telecom Limited (Montreal, CA)
Appl. No.:	06/701,250
Filed:	February 13, 1985

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Current U.S. Class:	D14/140.3
Field of Search:	;D14/100,102,107,114,111,109,52,53,56,57,58,59 ;361/331,332,334,335,380,381,390 ;379/93,95 ;D13/40,41

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References Cited [Referenced By]

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U.S. Patent Documents

D208633	September 1967	Pascale et al.
D283023	March 1986	Gibson
D284187	June 1986	Brown et al.

Primary Examiner: Lucas; Susan J.
Attorney, Agent or Firm: Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Evans