Q. polygraph was invented in 1921 by John Augustus Larson (Solved)
1. John Augustus Larson
2. Leonarde Keeler
3. Cesare Lombroso
4. Vittorio Benussi
- a. John Augustus Larson
1. John Augustus Larson
2. Leonarde Keeler
3. Cesare Lombroso
4. Vittorio Benussi