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| Patents for E. Wackerhagen | |||||
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| Number | Date | Patentee | Title | Type | |
| 64,605 | May 07, 1867 | S. Wheeler | Improvement in permutation locks | locks | |
| 76,680 | Apr. 14, 1868 | S. Wheeler | Improvement in pulleys and gearing for machinery | industrial machine pulleys and belt drive mechanisms | |
| 145,771 | Dec. 23, 1873 | S. Wheeler | Improvement in ore-washers | ore processing apparatus | |