DGT Deutsche Gesellschaft für Tierzahnheilkunde

#Quadrilaterals with dark surfaces or parts of surfaces #Black #White, grey, silver #Teeth, dentures, bites #One quadrilateral #Polygons with dark surfaces or parts of surfaces #Series of letters presenting different forms of writing #Blue #Polygonal figures with one or more convex or concave sides #Quadrilaterals containing representations of animals or parts of animals' bodies or plants #Two polygons, one inside the other (except 26.5.10 and 26.5.11) #Series of letters in different dimensions #Quadrilaterals containing one or more letters #Letters written in double outline