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| All Patents in class 178/17R | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,647 | Jun. 20, 1840 | S.F. Morse | Electric telegraph | telegraphy apparatus | |
| RE79 | Jan. 15, 1846 | S.F. Morse | Improvement in the mode of communicating information by signals by the application of electro-magnetism | telegraphy apparatus | |
| 2,852,047 | Sep. 16, 1958 | W.H. Odlum, W.F. Hosford | Tilting and elevating mechanism for a disc type table saw | tablesaws | |