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The ornamental design for a changeable plugs system, as shown.
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FIG. 1 is a front perspective view of a fifth embodiment 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;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a front elevational view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 06 2004 | NG, YUK HUNG | HELMS-MAN INDUSTRIAL CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014945 | /0774 | |
Mar 12 2004 | Helms-Man Industrial Co., Ltd. | (assignment on the face of the patent) | / |
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