The Gatling gun was designed by the American inventor Dr. Richard J. Gatling in 1861 and patented on November 4, 1862.
The Gatling gun was designed by the American inventor Dr. Richard J. Gatling in 1861 and patented on November 4 , 1862 .
In which year was the service entry date for Gatling gun?
In which year was the service entry date for Gatling gun ?
1862
1862