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Publication numberUSD387063 S
Publication typeGrant
Application numberUS 29/040,342
Publication dateDec 2, 1997
Filing dateJun 15, 1995
Publication number040342, 29040342, US D387063 S, US D387063S, US-S-D387063, USD387063 S, USD387063S
InventorsStefan Hillenmayer, Ulrich Skrypalle, Wayne E. McKinnon, David E. Bryant, Mary E. Kingsbury, Erich C. Elkins, Doug A. Erwin
Original AssigneeSiemens Rolm Communications Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Telephone key expansion unit
US D387063 S
Abstract  available in
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  1. The ornamental design for a telephone key expansion unit, as shown and described.

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.

Non-Patent Citations
1B. A. Pargh, 1992 Spring/Summer Catalog, Panasonic 6X16 Electronic Modular Switching System, p. 330, 2nd Article from top at far right.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD739373 *Apr 3, 2013Sep 22, 2015Unify Gmbh & Co. KgTelephone intercom system
USD789319Aug 25, 2015Jun 13, 2017Unify Gmbh & Co. KgKey module
USD789320Aug 25, 2015Jun 13, 2017Unify Gmbh & Co. KgKey module for telephone
U.S. ClassificationD14/140.9