File:Stephens TOF.gif
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| Description |
Stephens time-of-flight mass spectrometer patent Patent number: 2612607 Filing date: Apr 5, 1947 Issue date: Sep 1952 Inventor: William E. Stephens |
| Date | |
| Source | United States Patent and Trademark Office |
| Author | USPTO |
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| current | 21:52, 16 April 2008 | | 2,134 × 1,199 (31 KB) | Kkmurray (talk | contribs) | {{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 |
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