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Getting It Right the Second Time: How American Ingenuity Transformed Forty-nine Marketing Failures into Some of Our Most Successful Products. Reading, Mass.: Addison-Wesley, 1990. Includes a good discussion of what happened to Spangler’s invention once Hoover began running the company. Discusses Hoover’s marketing techniques for making the vacuum cleaner a success. Ikenson, Ben. Patents: Ingenious Inventions How They Work and How They Came to Be.
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