Glossary of postal terms. 2014.
sack sorting machine — (SSM) A mechanized, operator controlled machine similar to a parcel sorting machine but of heavier construction. It separates 1,875 sacks per hour by ZIP Code to about 30 runouts. (Compare with sack and parcel sorting machine) … Glossary of postal terms
SSM — sack sorting machine (SSM) A mechanized, operator controlled machine similar to a parcel sorting machine but of heavier construction. It separates 1,875 sacks per hour by ZIP Code to about 30 runouts. (Compare with sack and parcel sorting… … Glossary of postal terms
postal system — System that allows persons to send letters, parcels, or packages to addressees in the same country or abroad. Postal systems are usually government run and paid for by a combination of user charges and government subsidies. There are early… … Universalium
ZIP code — Mr. ZIP promoted the use of ZIP codes for the USPS during the 1960s and 1970s. ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan,[1] is properly… … Wikipedia
