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| Patents for M. I. Humiston | |||||
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| Number | Date | Patentee | Title | Type | |
| 477,229 | Jun. 21, 1892 | J. Rohlmann | Attachment for carving-machines | carving machines | |
| 478,640 | Jul. 12, 1892 | J. Rohlmann | Carving-machine | carving machines | |