GENEVA, June 19 -- CHINA RAILWAY ENGINEERING EQUIPMENT GROUP TUNNEL EQUIPMENT MANUFACTURING CO., LTD. filed a patent application (CN2025/147372) for “AUTOMATIC ROD CONNECTING MAGAZINE FOR ROCK DRILLING JUMBO AND CONTROL METHOD THEREFOR”. With publication no. WO/2026/103959, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: E21B 19/14
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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