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| Patents for R. C. Fessenden | |||||
| Number | Date | Patentee | Title | Type | |
| D19,895 | Jun. 10, 1890 | E. Weston | Case for Electrical Instruments | electrical measuring apparatus | |
| D19,896 | Jun. 10, 1890 | E. Weston | Magnet | electrical measuring apparatus | |