Surfaces or backgrounds in check pattern A 25.7.4

棋盘格表面或背景

Chinese 棋盘格表面或背景

English Surfaces or backgrounds in check pattern

Spanish Superficies o fondos con estampado de cuadros

Code: A 25.7.4
Category: 25.7 Surfaces or backgrounds covered with repeated geometrical figures, figurative elements or inscriptions
Version: Vienna Classification, 10th edition (VCL 10, in force from 1 Jan 2026); English from the WIPO official text, Chinese is a J&C reference translation