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/ The Way Things Work / Way Things Work, The (1994)(Dorling Kindersley).iso / article3 / supa / supa3n.dib (.png) < prev   
Bitmap Image  |  1994-04-22  |  13.8 KB  |  211x116  |  4-bit (11 colors)
   ocr: RETURNING BEAM Only the white spaces in the bar code reflect the laser beam. The reflected - - beam therefore pulses on andoffina - pattern that matches the bar code.