Inventions

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	Passages from the Life of a Philosopher By Charles Babbage Babbage Format: Paperback Publisher: Merchant Books Publication Date: 2/28/2008 Rating: Compare:	$14.75You save* $3.20
	William Oughtred - Teacher of Mathematics By Florian Cajori Cajori Format: Paperback Publisher: Merchant Books Publication Date: 7/31/2008 Rating: Compare:	$5.95You save* $4.00
	You and Your Big Ideas - A Resource Guide for Inventors, Innovators and Entrepreneurs By Fried Brian Format: Paperback Publisher: Wingspan Press Publication Date: 9/30/2008 Rating: Compare:	$6.40You save* $6.55
	The Story of Inventions Format: Paperback Publisher: H.F. Ullmann Publication Date: 9/30/2008 Rating: Compare:	$2.89You save* $9.06
	They Made America: From the Steam Engine to the Search Engine: Two Centuries of Innovators By Evans Harold Format: Paperback Publisher: Back Bay Books Publication Date: 5/31/2006 Rating: Compare:	$7.51You save* $11.44
	Historical Papers on Modern Explosives By George W. MacDonald W. MacDonald Format: Paperback Publisher: Merchant Books Publication Date: 8/31/2008 Rating: Compare:	$5.95You save* $4.00
	The Iron Whim: A Fragmented History of Typewriting By Wershler-Henry Darren Format: Hardcover Publisher: Cornell University Press Publication Date: 2/28/2007 Rating: Compare:	$14.77You save* $15.18
	Invent Yourself Rich: 16 Secrets for Creating Million-Dollar Inventions By Brown Don Format: Paperback Publisher: Westholme Publishing Publication Date: 4/30/2007 Rating: Compare:	$8.17You save* $11.78
	The Inventive Spirit of African Americans: Patented Ingenuity By Sluby Patricia Carter Format: Paperback Publisher: Praeger Publishers Publication Date: 3/31/2008 Rating: Compare:	$20.25You save* $2.70
	Gadget Nation: A Journey Through the Eccentric World of Invention By Greenberg Steve Format: Hardcover Publisher: Sterling Publication Date: 5/31/2008 Rating: Compare:	$8.17You save* $11.78

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