Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD374674 S
Publication typeGrant
Application numberUS 29/039,812
Publication dateOct 15, 1996
Filing dateJun 2, 1995
Publication number039812, 29039812, US D374674 S, US D374674S, US-S-D374674, USD374674 S, USD374674S
InventorsErich C. Elkins, Wayne E. McKinnon, David E. Bryant, Mary E. Kingsbury, Doug A. Erwin, William C. McRight
Original AssigneeSiemens Rolm Communications Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Telephone key expansion unit
US D374674 S
Abstract  available in
Previous page
Next page
  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
U.S. ClassificationD14/140.9