Answer :

The typewriter has introduced a lot of possibilities to the public and official work that weren't there before. Texts could be written faster, look neater (be readable), and important, they could not be changed without this leaving a sign, so it also provided more safety for the documents. 
The typewriter has introduced a lot of possibilities to the public and official work that weren't there before. Texts could be written faster, look neater (be readable), and important, they could not be changed without this leaving a sign, so it also provided more safety for the documents.

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