Patent description:发明人：杨士萱，郭子雄，叶勇，纪梦雨
Type of Patent:Utility models
Application Number:ZL202120203545.8
Authorization number:CN214574997U
Service Invention or Not:no
Application Date:2021-01-25
Patent description:发明人：杨士萱，郭子雄，叶勇，纪梦雨
Type of Patent:Utility models
Application Number:ZL202120203545.8
Authorization number:CN214574997U
Service Invention or Not:no
Application Date:2021-01-25
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