PLANTAVIS FORMEL L21

#Circles with dark surfaces or parts of surfaces #Circles containing one or more letters #Letters linked to a figurative element #Surfaces or backgrounds covered with circles or ellipses #Other geometrical solids #Series of letters in different dimensions #Straight lines or bands #Horizontal lines or bands #Surfaces or backgrounds covered with repeated geometrical figures or designs #Black #White, grey, silver #Surfaces or backgrounds covered with straight lines or bands #Oblique lines or bands #Letters in light-coloured characters on a dark background #Numerals presenting a special form of writing #Surfaces or backgrounds covered with a repeated inscription #Series of letters presenting different forms of writing #Green #Several circles, juxtaposed, tangential or intersecting