Question

What Elmer A. Sperry invented?

Answer 1

Hi friend..

Elmer A. Sperry invented gyroscopic compasses..

hope it helps you

Answer 2

Hello Namita!!

Elmer Ambrose Sperry, Sr. (October 12, 1860 – June 16, 1930) was an American inventor and entrepreneur.. Along with Herman Anschütz-Kaempfe he discovered  the 'gyrocompass" and was also the  founder of the Sperry Gyroscope Company.

HOPE THIS ANSWER HELPED YOU..PLEASEE MARK AS BRAINLIESTT!