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| Patents for Tobrin Tool Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,570,650 | Jan. 26, 1926 | W.S. Thomson | Cold Chisel | |
 | 1,679,103 | Jul. 31, 1928 | W.S. Thomson | Electrically-driven circular saw | |
 | 1,712,484 | May 14, 1929 | W.S. Thomson | Screw Driver | |