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spafford patent

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Spafford's patent, for improved wheel-carriages. This certificate, No. is evidence of the sale of a single right to use the improvement secured by my patent ... Albany Mo. 18.

Spafford's patent, for improved wheel-carriages. This certificate, No....

Dated in mss. 2 Mo. 18 1815 and signed by Horatis Gates Spafford, patentee. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephem... More