They Invented What? (No. 30)

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U.S. Pat. No. 6,745,395:  Hat with display device.

  

What is claimed is:

1. A head apparel, comprising: a loop structure sized to engage a person’s head; a brim secured to the loop structure, the brim comprising at least two series of interleaved sections arranged in a wave-like manner so that sections of each series are viewable by an observer from at least one direction and sections of respective series are viewable from at least one respective direction different from a direction from which sections of another series are viewable; and graphics on a plurality of sections of each series, the graphics defining a composite image or a plurality of related images that are viewable from the respective directions.

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