Drawing depicts the morse code or telegraph signs invented by Samuel Morse. Each letter of the alphabet is represented by a short or long, on or off signals.
Samuel Morse - Patent Drawings
Sheet 1 of 3
More information om Samuel Morse listed below photo. Use "View Full-Size" option to see a larger image or text.
Samuel Morse - Patent U.S. #1,647
USPTO1 of 14
Previous Next
See More About