Decision of Hon. Philip F. Thomas, Commissioner of Patents,
on the application of Samuel F. B. Morse, for an extension of his patent for a new and useful improvement in electro-magnetic telegraphs ...
APA Citation
United States. Patent Office. (1860). Decision of Hon. Philip F. Thomas, Commissioner of Patents: on the application of Samuel F. B. Morse, for an extension of his patent for a new and useful improvement in electro-magnetic telegraphs ... Washington: H. Polkinhorn, printer.
MLA Citation
United States. Patent Office. Decision of Hon. Philip F. Thomas, Commissioner of Patents: On the Application of Samuel F. B. Morse, for an Extension of His Patent for a New And Useful Improvement In Electro-magnetic Telegraphs ... Washington: H. Polkinhorn, printer, 1860.