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| All Patents in class 112/221 | |||||
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| Number | Date | Patentee | Title | Type | |
| 21,250 | Aug. 24, 1858 | M.D. Whipple, R.B. Fitts | Improvement in Sewing Machines | sewing machines | |
| 22,264 | Dec. 07, 1858 | J. First | Improvement in sewing-machines | ||
| 29,035 | Jul. 03, 1860 | J. First | Improvement in sewing-machines | sewing machines | |
| RE2,746 | Aug. 20, 1867 | C. Hodgkins | Improvements in sewing machines | ||
| 626,715 | Jun. 13, 1899 | W.P. Norton | Engine Lathe Head | engine lathes | |