Content protected from screenshots
GKFix.in
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
Home
My Profile
General Knowledge
Categories
Concept Builder
Start Quiz
Logout
GKFix MCQ Question
Test your knowledge and learn something new
Home
Inventions
Question #6109
Back to Home
View All Inventions Questions
20 Views
Question
What did cardiologist Dr. Paul Zoll invent in Massachusetts in 1952?
A. EKG
B. Artificial heart valve
C. Artificial heart
D. Pacemaker
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
Who discovered the cause of diphtheria?
39
Who invented the phonograph?
30
What piece of clothing was invented by French fashion designer Louis Reard in 1946?
23