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			 The ornamental design for a hair dryer, as shown and described. 
			  
			  
			  
			  
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The broken lines in the drawings depict portions of the hair dryer that form no part of the claimed design.
| Patent | Priority | Assignee | Title | 
| D948117, | Sep 29 2020 | ENTERECOS (GUANGDONG) TECHNOLOGIES CO. LTD. | Hair dryer | 
| D953630, | Oct 13 2020 | Hair dryer | |
| D955040, | Oct 13 2020 | Hair dryer | |
| D973272, | Dec 01 2021 | Hair dryer | |
| ER1245, | |||
| ER1485, | |||
| ER155, | |||
| ER343, | |||
| ER3754, | |||
| ER3910, | |||
| ER3953, | |||
| ER4198, | |||
| ER504, | |||
| ER5751, | |||
| ER58, | |||
| ER602, | |||
| ER6118, | |||
| ER6433, | |||
| ER721, | |||
| ER7305, | |||
| ER7576, | |||
| ER8162, | |||
| ER8240, | |||
| ER8286, | |||
| ER8349, | |||
| ER8758, | |||
| ER8861, | 
| Patent | Priority | Assignee | Title | 
| 4132360, | Aug 22 1977 | BLACK & DECKER, INC , A CORP OF DE | Pulsating hair dryer | 
| 4903416, | Oct 15 1987 | Handheld cordless hair dryer | |
| 5839204, | Aug 13 1997 | Portable dryer with a retractable handle pitting into an indented housing | |
| D248048, | Jul 30 1976 | The Gillette Company | Hair dryer | 
| D257492, | Dec 18 1978 | The Gillette Company | Hair dryer | 
| D280338, | Feb 12 1982 | Skilten Electronics Limited | Hot air blower | 
| D299874, | Oct 08 1986 | Sharp Kabushiki Kaisha | Hair drier | 
| D341302, | Jun 14 1991 | Windshield de-icing apparatus | |
| D537565, | Sep 15 2005 | Hair dryer | |
| D537566, | Apr 20 2005 | Sanyo Electric Co., Ltd.; Tottori Sanyo Electric Co., Ltd. | Handle for hairdryer | 
| D635835, | Feb 15 2010 | SULZER MIXPAC AG | Caulking gun | 
| D859738, | Mar 30 2018 | Jieyang City Yongri Technology Co., Ltd. | Hair dryer | 
| D861246, | Mar 26 2018 | Zhejiang Siau Electric Appliance Co., Ltd.; ZHEJIANG SIAU ELECTRIC APPLIANCE CO , LTD | Hair dryer | 
| D901768, | Oct 11 2018 | Hair dryer | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jul 06 2020 | Dongguan KangRoad Electrical Technology Co., Ltd. | (assignment on the face of the patent) | / | |||
| Sep 25 2021 | ZHOU, YUNGANG | DONGGUAN KANGROAD ELECTRICAL TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 057600 | /0136 | 
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