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The ornamental design for a portable toothbrush sterilizer, as shown and described.
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FIG. 1 is a perspective view of a portable toothbrush sterilizer showing my new design;
FIG. 2 is a front plan view thereof;
FIG. 3 is a rear plan view thereof;
FIG. 4 is a left side plan view thereof;
FIG. 5 is a right side plan view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a reference drawing showing the partially open condition of the lid thereof;
FIG. 9 is a reference drawing showing the fully open condition of the lid thereof; and,
FIG. 10 is a reference drawing showing the condition of having separated the protecting cap from the body thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 10 2006 | SHIN, CHOONG-SIK | ESENCIA CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 018462 | /0796 | |
| Oct 25 2006 | Esencia Co., Ltd. | (assignment on the face of the patent) | / |
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