File:US Patent 306X color page1.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:09, 6 November 2007 | 997 × 1,200 (241 KB) | John Vandenberg | {{Information |Description=US Patent |Source=uspto |Date= |Author=uspto |Permission=Patent material - public domain |other_versions= }} {{patent}} Category:U.S. Patents |
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