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The ornamental design for a vertical vacuum cleaner, as shown and described.
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The broken lines represent unclaimed features that form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 11 2017 | Jiangsu Midea Cleaning Appliances Co., Ltd. | (assignment on the face of the patent) | / | |||
| Jan 17 2017 | ZHOU, LIANGSHENG | JIANGSU MIDEA CLEANING APPLIANCES CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 041073 | /0729 |
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