Stephen J. Poplawski, owner of the Stevens Electric Company, invented the drink mixer and liquefier blender in 1922. Stevens Electric was sold to Oster Manufacturing, a manufacturer of barber equipment, in 1946. Oster commercialized the liquefier blender under the trademark Osterizer. Oster was bought by Sunbeam Products in 1960. In 1935, Fred Osius invented another kind of blender. He approached Fred Waring, a popular musician who financed and promoted the "Miracle Mixer", which was commercialized in 1937 by Waring Products. Waring popularized the smoothie in the 1940s. Waring long used the spelling "blendor" for its product. Goodman's carries a full line of domestic and commercial blenders by Oster, Osterizer, Waring, Hamilton Beach etc. for smoothies, Frappucinos and other frozen drinks.