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| Patents for J. N. Marshall | |||||
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| Number | Date | Patentee | Title | Type | |
| 96,224 | Oct. 26, 1869 | J.P. Grosvenor | Improvement in method of adjusting circular saws | tablesaws | |
| 123,562 | Feb. 13, 1872 | J.P. Grosvenor | Improvement in lubricating-boxes and bearings for upright shafts | woodworking machine lubrication | |
| RE4,763 | Feb. 20, 1872 | J.P. Grosvenor | Improvement in circular-saw mills | tablesaws | |
| 176,785 | May 02, 1876 | J. Holt | Improvement in saw-tables | tablesaws | |