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| All Patents in class 33/271 | |||||
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| Number | Date | Patentee | Title | Type | |
| 247 | Jun. 30, 1837 | T.H. Hoskings | Machine for mortising timber | mortising machines | |
| 441,777 | Dec. 02, 1890 | J.L. Simmons | Explorer's Instrument | magnetic compasses | |