GENEVA, March 23 -- HUBEI JIANDUN FIRE TECHNOLOGY CO., LTD. (No.199 Huaxi Road, Biological Industrial Park, China (Hubei) Free Trade Zone Yichang AreaYichang, Hubei 443000), 湖北及安盾消防科技有限公司 (中国湖北省宜昌市中国（湖北）自贸区宜昌片区生物产业园花溪路199号) filed a patent application (PCT/CN2023/135156) for "INTERMITTENT-DISCHARGE-TYPE FIRE EXTINGUISHING DEVICE HAVING FAN BLADE AND SPEED REDUCING MECHANISM, AND FIRE EXTINGUISHING METHOD" on Nov 29, 2023. With publication no. WO/...