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| All Patents in class 470/903 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,222,954 | Apr. 17, 1917 | J.F. Judd, J.J. Hogan | Threading mechanism for automatic lathes | metal lathes | |
| 1,358,074 | Nov. 09, 1920 | W.H. Gates | Die Head | tap and die holders | |
| 3,052,011 | Sep. 04, 1962 | H.J. Baechle, C.B. Sipek, R.K. Sedgwick, J.A. Hansen, W.E. Brainard | Machine Tool with a Mechanical Cutting Tool Changer | milling machines | |