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 | The ornamental design for a siren box, as shown and described. | |||||||||||||||||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| May 24 2013 | YU, FENG | NINGBO YINZHOU SELF PHOTOELECTRON TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 030740/ | 0986 | |
| Jun 24 2013 | Ningbo Yinzhou Self Photoelectron Technology Co.,. Ltd. | (assignment on the face of the patent) | / | |||
| Jul 10 2019 | NINGBO YINZHOU SELF PHOTOELECTRON TECHNOLOGY CO , LTD | NINGBO VASA INTELLIGENT TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 051671/ | 0078 | 
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