GENEVA, July 18 -- SHANGHAI CIVIL ENGINEERING CO., LTD OF CREC filed a patent application (CN2025/089021) for “ELECTROMAGNETIC INDUCTION HEATING DEVICE FOR WELD SEAM OF DUAL-FREQUENCY STEEL RAIL AND USE METHOD THEREFOR”. With publication no. WO/2026/148746, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: E01B 31/18
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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