Rare Books
Specification of the patent granted to William Hale, of Woolwich, in the County of Kent, Engineer, for improvements in rockets. : Sealed January 11, 1844
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Letters patent for improved cut-off for oscillating engines
Manuscripts
Letters patent for William Craig's invention of the Improved Cut-off for Oscillating Engines. Documents include a certificate signed by Secretary of the Interior and Commissioner of Patents, also with ribbon and seal of the Patent Office, printed diagram of machine signed by William Craig, and printed specifications by William Craig.
mssHM 80295