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The ornamental design for a door knob, as shown and described.
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The broken lines shown in the drawings are included for the purpose of illustrating portions of the door knob that form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Nov 24 2021 | LIU, KEZHI | SHENZHEN RUNDIAN INNOVATION TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 058213 | /0759 | |
| Nov 26 2021 | Shenzhen Rundian Innovation Technology Co., Ltd. | (assignment on the face of the patent) | / |
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