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			 The ornamental design for a waffle machine, as shown and described. 
			  
			  
			  
			  
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Mar 19 2021 | Shenzhen Yuanrui Information Technology Co., Ltd. | (assignment on the face of the patent) | / | |||
| Mar 19 2021 | LIN, JINLONG | SHENZHEN YUANRUI INFORMATION TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 055654 | /0958 | 
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