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| Patents for Herbert G. Ogden | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 918,050 | Apr. 13, 1909 | R.H. Hazeltine | Valve Grinding Device | |
 | RE13,421 | May 21, 1912 | R.H. Hazeltine | Machine for Reseating Valves | |