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The 300 model of the telephone offers a built in bell
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Sony's VCR is selling for 1300 dollars to the home market
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Microwave ovens are becoming very popular and sales are taking off. They now offer digital readouts and push button controls.
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CDs are developed in the 1970's and are appearing on the shelves of music stores
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Refrigerators are becoming more energy efficient and no longer are using ozone-harming CFs