Minor-league inventors had a field day at the "World's Invention Exposition" in Chicago. Sample exhibits:
¶ A girdle to round out flat buttocks.
¶ A "walk away cane" equipped with a suction cup to hold the stick vertical while the stroller walks away.
¶ A complicated nonslip brassiere to eliminate a hazard for bosomy golfers.
¶ An electric vibrating pencil eraser.
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