Secrets of The U. S. Postal System

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Written by:

Brenda R


Date added:

October 20, 2012








No of pages / words:

3 / 812


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6670 times


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It wasn't until 1956 in Baltimore Maryland that the first semi-automatic parcel sorting machine was introduced. Today the post office uses many different types of sorting machines to sort mail. These machines are called Vsorts. Not only do they sort but it arranges letters right side up so the special software programmed with it can read the mailing address of each envelope...
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It also puts an invisible mark over the letters stamp so the stamp cannot be reused. This is called stamp canceling. This machine can scan and sort 24,000 letters an hour. When a letter address cannot be read the computer takes a picture of the letters address and sends it to a Remote Encoding Center...
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