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Education and Entertainment
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Jan 1, 2002
Education and Entertainment
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Aug 28, 2001
Education and Entertainment
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Jun 26, 2001
Education and Entertainment
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Dec 24, 1996
Education and Entertainment
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Oct 28, 1997
Computer and Scientific
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NATIONAL INVENTORS HALL OF FAME FOUNDATION
Dec 13, 1977