File:1970's Czechoslovka TESLA automatic telephone exchange.jpg

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Summary

Description
English: Top end of an early 1970's TESLA crossbar telephone exchange produced in Czechoslovakia
Date
Source Own work
Author Fanfardon

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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20 December 2009

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current19:13, 9 February 2011Thumbnail for version as of 19:13, 9 February 20113,072 × 2,304 (2.95 MB)imagescommonswiki>Fanfardon{{Information |Description ={{en|1=Top end of an early 1970's TESLA telephone exchange produced in Czechoslovakia}} |Source ={{own}} |Author =Fanfardon |Date =2009-12-20 |Permission = |other_versions = }

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