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 #6099
Back to Home
View All Inventions Questions
39 Views
Question
When were bar code scanners invented?
A. 1940s
B. 1950s
C. 1970s
D. 1960s
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What plaything was invented by Joe McVicker in 1956?
35
What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?
28
Who discovered oxygen?
33