March one thousand eight hundred and thirty-one, the full and exclusive right and liberty of making, constructing, using and vending to others to be used... The North American Review - Página 292 1826 Visualização completa - Sobre este livro
...for the term of fourteen years from the first day of April, one thousand eight hundred and fifty-six, the full and exclusive right and liberty of making, constructing, using, and vending to others to be nsed, the said machines, a description whereof is given in the words of the said Harrington...