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The ornamental design for the lamp bulb, as shown and described.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 26 2014 | YU, YUTING | OPPLE LIGHTING CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034585 | /0268 | |
Sep 09 2014 | Opple Lighting Co., Ltd | (assignment on the face of the patent) | / |
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