39. The first practical commercial typewriter was invented in 1867 in the United States by A.Christopher Latham Sholes B.Carlos Glidden C.Samuel Soule D.All of the above E.None of the above
Option D Solution: The first typewriter to be commercially successful was invented in 1878 by Americans Christopher Latham Sholes, Frank Haven Hall, Carlos Glidden and Samuel W. Soule in Milwaukee.
