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We review the stories of two great 20th century inventors. Guglielmo Marconi (1874 - 1937) was an Italian radio pioneer. Edwin Land (1909 - 1991) was the American chemist who invented the Polaroid Camera.
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We review the stories of two great 20th century inventors. Guglielmo Marconi (1874 - 1937) was an Italian radio pioneer. Edwin Land (1909 - 1991) was the American chemist who invented the Polaroid Camera.