GENEVA, July 31 -- NINGBO YONGWEI GROUP CO. LTD. filed a patent application (CN2025/139599) for “CYLINDER OF ROTOR COMPRESSOR PUMP ASSEMBLY AND MANUFACTURING METHOD”. With publication no. WO/2026/157571, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: F04C 29/00
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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