INTERNATIONAL PATENT: CRRC CHANGCHUN RAILWAY VEHICLES CO., LTD., 中车长春轨道客车股份有限公司 FILES APPLICATION FOR "TRAIN AIRTIGHTNESS TESTING METHOD AND APPARATUS, ELECTRONIC DEVICE AND STORAGE MEDIUM"

GENEVA, April 27 -- CRRC CHANGCHUN RAILWAY VEHICLES CO., LTD. (No. 2001 Changke RoadChangchun, Jilin 130000), 中车长春轨道客车股份有限公司 (中国吉林省长春市长客路2001号) filed a patent application (PCT/CN2023/131207) for "TRAIN AIRTIGHTNESS TESTING METHOD AND APPARATUS, ELECTRONIC DEVICE AND STORAGE MEDIUM" on Nov 13, 2023. With publication no. WO/2025/081562, the details related to the patent application was published on Apr 24, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Prop...