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| Patents for John First | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 22,264 | Dec. 07, 1858 | J. First | Improvement in sewing-machines | |
 | 29,035 | Jul. 03, 1860 | J. First | Improvement in sewing-machines | |
 | 30,138 | Sep. 25, 1860 | G. Frost | Cut-off valve for steam-engines | |
 | 166,355 | Aug. 03, 1875 | J. First | Improvement in resawing-machines | |
 | 182,438 | Sep. 19, 1876 | W.D. Herschel | Improvement in scroll-sawing machines | |