John Lawrence Smith invented inverted microscope in
Answer: A
No answer description available for this question
Nancy Johnson invented hand-cranked ice cream churn in
Answer: A
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Frequency modulation radio 'FM' was invented by
Answer: B
No answer description available for this question
By which country was Atomic bomb was first successfully developed
Answer: A
No answer description available for this question
Integrated circuit was created by two engineers working separately in
Answer: C
No answer description available for this question