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  Soon came hand held mixers, which continually change with style, even today.
The see-through mixer; one of many of the latest designs. - 
  
  In time the mounted mixers were taken over by an again smaller model, which was made up of a small plastic container with a handle.
The latest version of the container blender with a handle. - 
  
  By World War II and into the 1950’s, a new mixer, which was mounted on a stand and had a bowl underneath, was replacing the glass-bottomed design. This new style had a more powerful motor and two gear-driven beaters.
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  Later version of the bowl mixer.
Regular blender from the 1950's. - 
  
  In 1935 Fred Waring joined up with Frederick Osius and marketed the Waring Blendor.
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  In 1922, Stephen Poplawski, from Racine, Wisconsin was the first to invent what is now sought of as a blender. He attached a spinning blade at the bottom of a container, which he used to make soda fountain drinks.
Waring, from the band, Fred Waring and the Pennsylvanians, promoted these blenders to bartenders, for whipping frozen drinks. - 
  
  Many blenders into the 1920's looked very similar.
The motor stood on a separate iron stand and was usually adjustable. - 
  
  Not many patents came after this until 1910, but most were issued between 1920 and 1930.