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Weird & wacky inventions
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Includes drawings of unusual inventions submitted to the patent office with clues to aid the reader in guessing the purpose of each invention.
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- ● children's books
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Includes drawings of unusual inventions submitted to the patent office with clues to aid the reader in guessing the purpose of each invention.
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"Includes drawings of unusual inventions submitted to the patent office with clues to aid the reader in guessing the purpose of each invention."
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