Path of Progress

Minor-league inventors had a field day at the "World's Invention Exposition" in Chicago. Sample exhibits:

P: A girdle to round out flat buttocks.

P: A "walk away cane" equipped with a suction cup to hold the stick vertical while the stroller walks away.

P: A complicated nonslip brassiere to eliminate a hazard for bosomy golfers.

P: An electric vibrating pencil eraser.

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