Challenger Logo

Challenger App

Get it on Google PlayGet it on App Store
App Logo

No.1 PSC Learning App

★
★
★
★
★
1M+ Downloads
Get App
The stencil duplicator was invented in the year:

A1914

B1881

C1891

D1924

Answer:

B. 1881

Read Explanation:

  • Cyclostyle was the earliest form of stencil copying
  • Cyclostyle was invented by David Gestetner ( 1881) (Got patent in 1890)
  • The stencil duplicator was invented in the year - 1881

 

Related Questions:

Identify the wrong statement about packing typewriter?

Home keys in a typewriter are?

  1. A s d f
  2. ; l k j
  3. N
  4. Q w e r t y
    The key which we can type all the letters in a capital at a stretch without pressing shift key always:
    There are ----- sets of feed rollers in a typewriter.
    Which of the following keys switches between numbers to arrow keys ?