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| Tue 16 Jun 2026
Beijing, June 17 -- Shandong Perfect Sign Co Ltd has submitted a patent application for Gas Station Cornice Signboard Free of High-altitude Operation Replacement. Kong Xiangtao, Su Zhiyong, Li Zongsong and Lun Zhilian developed the invention.
The patent application number is CN202511514506 20251022. The patent publication num..