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| Patents for R. D. Tolman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 892,927 | Jul. 07, 1908 | E.W. Bemis | Work Holding Mechanism for Metal Working Machines | |
| 1,254,736 | Jan. 29, 1918 | F.L. Simmons | Magnetic Chuck | ||