SECURITY STRIPS
The invention relates to security strips for identifying the authenticity of sheet material, such as documents, bonds and bank notes. Said security strips are formed from several different components, coding means and electrically conducting layers all connected in differing arrangements with a carrier substrate. Layers of known electrically conducting polymers find application. Said security strips are applied to the sheet material or integrated in the sheet material. Said security strips present an insurmountable hurdle for forgers.