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| Patents for Julius Twiss | |||||
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| Number | Date | Patentee | Title | Type | |
| 118,938 | Sep. 12, 1871 | H.R. Hill, N.W. Twiss | Improvement in lathes | pattern lathes | |
| 301,080 | Jul. 01, 1884 | L.C. Strickland, E.F. Barnes | Outside pipe-cutter | pipe cutters | |
| 347,395 | Aug. 17, 1886 | W.L. Sweetland | Lathe Chuck | metal lathe chucks | |