Blueprint background. Dark blue backdrop with lines for technical planning. Engineering, architecture invention concept. Drawing grid made of cubes and white text. Vector illustration, flat, clip art premium vector by Tacka

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blue vector background illustration design paper texture cube board pattern industrial technology dark backdrop concept architecture building construction house blank text lines flat measure scale wallpaper drawing project gradient grid science print sketch sheet engineering plan invention innovation technical mechanical graph chart blueprint scribble chalk math guides wireframe clip art Under Construction

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