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The ornamental design for a laser engraving machine, as shown and described.
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The broken lines in the drawings are included for the purpose of illustrating portions of the article which form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 13 2019 | JIANG, SHUO | DONGGUAN XINJIA LASER TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 053451 | /0782 | |
Jan 13 2019 | WANG, SONG | DONGGUAN XINJIA LASER TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 053451 | /0782 | |
Jan 26 2019 | Dongguan Xinjia Laser Technology Co., Ltd. | (assignment on the face of the patent) | / |
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