Telephone key expansion unit

Description

FIG. 1 is a perspective view of the telephone key expansion unit of the present invention;

FIG. 2 is a top view;

FIG. 3 is a front elevational view;

FIG. 4 is a right-side elevational view;

FIG. 5 is a left-side elevational view;

FIG. 6 is a rear elevational view; and,

FIG. 7 is a bottom view.

The broken lines showing of a telephone in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a telephone key expansion unit, as shown and described.

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Inventors:	Hillenmayer; Stefan (Munich, DE), Skrypalle; Ulrich (Munich, DE), McKinnon; Wayne E. (Georgetown, TX), Bryant; David E. (Austin, TX), Kingsbury; Mary E. (Dallas, TX), Elkins; Erich C. (San Francisco, CA), Erwin; Doug A. (Austin, TX)
Assignee:	Siemens Rolm Communications Inc. (Santa Clara, CA)
Appl. No.:	D/040,342
Filed:	June 15, 1995

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Current U.S. Class:	D14/140.9
Current International Class:	1403
Field of Search:	;D14/140,142,149,150,218,240,241 ;379/419,420,428,440,433-436,441,442

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References Cited [Referenced By]

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U.S. Patent Documents

D306027	February 1990	Gagnon
D306859	March 1990	Helstab et al.
D311918	November 1990	Renard
D312461	November 1990	Ando
D317920	July 1991	Fuqua et al.
D319235	August 1991	Sato
D340057	October 1993	Wetzel et al.
D346385	April 1994	Wetzel et al.
4790007	December 1988	Richter et al.
5373556	December 1994	Johnson

Other References

B A. Pargh, 1992 Spring/Summer Catalog, Panasonic 6X16 Electronic Modular Switching System, p. 330, 2nd Article from top at far right..

Primary Examiner: Asch; Jeffrey