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Patents for Ernst Richter | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 296,951 | Apr. 15, 1884 | G.A. Gray, Jr. | Metal Planing Machine | |
![]() | 597,355 | Jan. 11, 1898 | G.A. Gray, E. Richter | Feed for metal-planers | |
![]() | 597,356 | Jan. 11, 1898 | G.A. Gray, E. Richter | Feed for metal-planers |