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Exploration of Space Collection
Albert Einstein Collection
Patents
History of U.S. Patents - Fire of 1836
K05480 - James Madison Signed Patent
K01907 - James Monroe Signed Patent
K01993 - Thomas Jefferson Signed Patent
K08698 - Thomas Pinckney Signed Letter Re Patents
K01558 - George Washington Signed Patent
K08690 - George Washington Signed Patent
K11017 - Patent Collection
Hughes War Plans
The Plans
A Man Little Known in the Annals of History
KAG Items