Inside Out Library · Explore

Scientific American, Vol. 69, No. 3 (1893) (1893)

leaf 15

An illustration from Scientific American, Vol. 69, No. 3 (1893), 1893, leaf 15 — rs, 5 %tol0h.p. Can Letters Patent No. 474,281, granted’to ¥ / be used in cities or / / to country indepen- Thomas .A. Edison, May 3 1892, ‘for a dent of works Speaking Telegraph, which cover funda- or gas OB. with Stee Sabla of tthe SCIENTIFIC connection mental inventions and embrace all forms No… … © 1893 SCIENTIFIC AMERICAN, INC

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 69, No. 3 (1893)

More like this