GENEVA, July 18 -- LIU, Haiyun (Room 304, Building 4, Fishery Company Dormitory, No.22 Tiaoshun Road, Chikan DistrictZhanjiang, Guangdong 524099), 刘海云 (中国广东省湛江市赤坎区调顺路22号渔业公司宿舍4幢304房) filed a patent application (PCT/CN2024/088988) for "METHOD FOR LOTTERY BY FIRST SEALING AND THEN UNSEALING NUMBERS" on Apr 20, 2024. With publication no. WO/2025/148191, the details related to the patent application was published on Jul 17, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World I...