Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 硯群工具有限公司filedCritical硯群工具有限公司
Priority to TW111214201UpriorityCriticalpatent/TWM640273U/zh
Publication of TWM640273UpublicationCriticalpatent/TWM640273U/zh