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| Patents for R. Eickemeyer | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,396 | Mar. 11, 1856 | R. Eickemeyer | Improvement in Parallel Rulers | rules | |
| 454,207 | Jun. 16, 1891 | R. Eickemeyer, Jr. | Electric resistance-box | ||