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| Patents for Theodore S. Purnis | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,667,218 | Apr. 24, 1928 | T.S. Purnis | Tool for planing valve seats | |
 | 1,709,807 | Apr. 16, 1929 | T.S. Purnis | Liner for valve seats | |