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 : patented April 11, 1846 : patent extended for seven years from the 11th day of April, 1860.
Contributors: Thomas, Philip F. 1810-1890.; Morse, Samuel Finley Breese, 1791-1872.; Joseph Meredith Toner Collection (Library of Congress)
Publisher: Henry Polkinhorn, printer
Published: 1860
Place of publication: Washington
Language: eng
Number of pages: 32
Subjects: Morse, Samuel Finley Breese, 1791-1872 -- Trials, litigation, etc.; Telegraph -- United States -- Patents.; Patent extensions -- United States.
Genres: Trials, litigation, etc.; Patents.