File:Two moving spirals scroll pump.gif

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:05, 14 May 2006		159 × 152 (54 KB)	commons>Cacycle	{{Information\| \|Description=Two moving archimedian spirals, mechanism of a vacuum scoll pump \|Source=selfmade \|Date=May 16, 2006 \|Author=Cacycle \|Permission=[[w:GNU Free Documentation License \|

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