GENEVA, July 27 -- LIUPANSHUI NORMAL UNIVERSITY filed a patent application (CN2025/092391) for “GAS PREVENTION AND CONTROL SEALING AND REINFORCEMENT STRUCTURE”. With publication no. WO/2026/152592, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: E21F 17/103
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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