74401488
Jun 14, 1993
Jun 6, 1995
plastic sheet material embossed with micro-optic pattern for printing of three-dimensional images and special effects, plastic sheet material embossed with micro-optic pattern for enhancing the brightness of an image printed on the plastic sheet, plastic sheet material embossed with micro-optic pattern for making an image printed on the plastic sheet material copy proof, plastic sheet material embossed with reflective and light-absorbing surfaces for producing an image in accordance with the positions of the reflective and light-absorbing surfaces, plastic sheet material embossed with micro-scale locking pattern for aligning and locking structures which incorporate the plastic sheet material embossed with the micro-scale locking pattern, and plastic sheet material embossed with micro-optic patterns which produce colors by virtue of the size and shape of the patterns in order to create a color image
Paper Goods and Printed Matter