To whom was the first patent of integral pencil and eraser issued?

Options :
  1. William Philips
  2. Joseph Rechendorfer
  3. David Wright
  4. James Knits
Answer and Explanation :-

Answer: Option 2

Explanation:

It was issued in USA on 30 March, 1858.

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : What was the main cause of slavery in South?

Next Question : Euphrates river merges with Tigris river in south-eastern

Click here for online test on World History

Responses


 (Getemail alerts when others member replies)







You are forgiven for your happiness and your successes only if you generously consent to share them.
-Albert Camus