Atomichron

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The Atomichron was the worlds first commercial atomic clock, built by the National Company, Inc of Malden, Massachusetts. It was also the first self-contained portable atomic clock and was a caesium standard clock. More than 50 clocks with the trademarked Atomichron name were produced.[1][2][3][4]

[edit] References

  1. ^ Forman, P (July 1985). "Atomichron®: The atomic clock from concept to commercial product". Proceedings of the IEEE 73 (7): 1181- 1204. ISSN 0018-9219. 
  2. ^ The Global Positioning System. Retrieved on 2008-04-23.
  3. ^ "Science Update", The Dallas Morning News, 1989-10-02. 
  4. ^ (1996) The Global Positioning System: The Path From Research to Human Benefit. National Academy of Sciences, 7. 

[edit] External links

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