Patterns
1) 2022 United States Patent, No. 11,246,238 B2.
2) 2021 Invention Patent of Republic of China, No. I750654.
3) 2020 Invention Patent of Republic of China, No. I707010.
4) 2019 Invention Patent of Republic of China, No. I664017.
5) 2019 Invention Patent of Republic of China, No. I664016.