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| Patents for E. B. Pratt | |||||
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| Number | Date | Patentee | Title | Type | |
| 281,737 | Jul. 24, 1883 | N.P. Stevens | Machine for dressing hoops | hoop making machines | |
| 286,173 | Oct. 09, 1883 | W. Bowker | Machine for sawing hoops and poles | hoop making machines | |
| 290,396 | Dec. 18, 1883 | J.S. Cantelo | Drawing-knife | draw knives | |
| 300,041 | Jun. 10, 1884 | S.W. Card | Machine for Threading Screw-Taps | metal threading machines | |
| 303,074 | Aug. 05, 1884 | J. Thompson | Stone-Cutter's Mallet | mallets | |
| 315,686 | Apr. 14, 1885 | O.C. White | Lathe tool-rest | metal lathes | |