Image: Slide Rule-Karoly Szabo
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Description: Slide rule Karoly Szabo Photo User:Tamas Szabo
Title: Slide Rule-Karoly Szabo
Credit: Transferred from en.wikipedia to Commons by Common Good using CommonsHelper.
Author: The original uploader was Tamas Szabo at English Wikipedia
Usage Terms: Creative Commons Attribution-Share Alike 2.5
License: CC BY-SA 2.5
License Link: http://creativecommons.org/licenses/by-sa/2.5
Attribution Required?: Yes
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