Inventions MCQs – Certification Test 183

Polygraph MCQ (Question 183) – Study App & e-Book Download

Download eBook:

Apps:

MCQ 183: In which one of the following year, Polygraph was patented?

1965
1972
1918
1921

Previous MCQ

Next MCQ

Inventions MCQ App & e-Book – Polygraph Admission Tests

Electric Elevator MCQs

Electrophotograph MCQs

Free Polygraph Study App – Download from App Store & Play Store

Free Polygraph MCQ App: Study Polygraph Notes, General Knowledge MCQ App, and Educational Psychology MCQ App for invention online learning continuity.

Download the Polygraph Study App: Free General Knowledge MCQ App (iOS & Android) for invention knowledge advancement. Download App Store & Play Store Learning Apps with all functionalities to enhance invention remote participation.