File:Stephens TOF.gif

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DescriptionStephens TOF.gif	Stephens time-of-flight mass spectrometer patent Patent number: 2612607 Filing date: Apr 5, 1947 Issue date: Sep 1952 Inventor: William E. Stephens
Date	1952
Source	United States Patent and Trademark Office
Author	USPTO

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:52, 16 April 2008		2,134 × 1,199 (31 KB)	Kkmurray	{{Information \|Description= Stephens time-of-flight mass spectrometer patent Patent number: 2612607 Filing date: Apr 5, 1947 Issue date: Sep 1952 Inventor: William E. Stephens \|Source=United States Patent and Trademark Office \|Date=1952 \|Author= USPT