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Publication numberUSD556138 S1
Publication typeGrant
Application numberUS 29/269,566
Publication dateNov 27, 2007
Filing dateDec 4, 2006
Priority dateSep 12, 2003
Also published asUSD543147
Publication number269566, 29269566, US D556138 S1, US D556138S1, US-S1-D556138, USD556138 S1, USD556138S1
InventorsYuk Hung Ng
Original AssigneeHelms-Man Industrial Co., Ltd.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Changeable plugs system
US D556138 S1
Abstract  available in
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  1. The ornamental design for a changeable plugs system, as shown.

FIG. 1 is a front perspective view of a changeable plugs system in accordance with the present design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevational view thereof. A right side elevational view thereof would be a mirror image of FIG. 3;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a front elevational view thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7938653May 18, 2009May 10, 2011Phihong Usa CorporationElectrical plug device with folding blades
US20100291779 *May 18, 2009Nov 18, 2010Phihong Usa CorporationElectrical plug device with folding blades
USD665354 *Dec 2, 2011Aug 14, 2012Askey Technology (Jiangsu) Ltd.Electrical plug
U.S. ClassificationD13/138.1