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Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time

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Did you know you can view any U.S. patent, from 1790 to 2012, including the automatic sextant above?

Search the PatFT database. Or browse via Google Patents.

Inspire your inner inventor


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California State University Maritime Academy

Cal Maritime Library
200 Maritime Academy Drive
Vallejo, CA 94590 

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