Conquests of invention; Cyrus H. McCormick, Elias Howe, Thomas A. Edison, William Murdock, Robert Fulton, Guglielmo Marconi, Charles Goodyear, George Westinghouse, Eli Whitney, Alexander Graham Bell T Technology
The Engineer’s reference, containing a complete directory … of manufacturers and dealers … of Philadelphia [1898] T Technology
Valuable secrets in arts, trades, &c. : selected from the best authors and adapted to the situation of the United States T Technology
