When in 1870-1900, American inventor Ives McGaffey and British inventor Hubert Cecil Booth turned an air pump backwards and attached an electric motor, they created a machine called an aspirator. Today virtually every home owns one. What is it? - Triviacafe

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When in 1870-1900, American inventor Ives McGaffey and British inventor Hubert Cecil Booth turned an air pump backwards and attached an electric motor, they created a machine called an aspirator. Today virtually every home owns one. What is it?

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VACUUM CLEANER Wm. Hoover first mass-produced light models

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