Triangles with dark surfaces or parts of surfaces A 26.3.24

表面或部分表面为深色的三角形

Chinese 表面或部分表面为深色的三角形

English Triangles with dark surfaces or parts of surfaces

Spanish Triángulos con superficies oscuras o partes de superficies oscuras

Code: A 26.3.24
Category: 26.3 Triangles, lines forming an angle
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